diff --git a/problem_builder/public/js/translations/de_DE/textjs.js b/problem_builder/public/js/translations/de_DE/textjs.js
index 6b59c96b..562790ca 100644
--- a/problem_builder/public/js/translations/de_DE/textjs.js
+++ b/problem_builder/public/js/translations/de_DE/textjs.js
@@ -24,13 +24,17 @@
   django.catalog = django.catalog || {};
   
   var newcatalog = {
-    "All": "Alle", 
-    "Data export failed. Reason: <%= error %>": "Export der Daten ist fehlgeschlagen. Grund: <%= error %>", 
+    "All": "Alle",
+    "Data export failed. Reason: <%= error %>": "Export der Daten ist fehlgeschlagen. Grund: <%= error %>",
     "Results retrieved on <%= creation_time %> (<%= seconds %> second).": [
-      "Ergebnisse am <%= creation_time %> (<%= seconds %> second) abgerufen", 
+      "Ergebnisse am <%= creation_time %> (<%= seconds %> second) abgerufen",
       "Ergebnisse am <%= creation_time %> (<%= seconds %> second) abgerufen."
-    ], 
-    "The report is currently being generated\u2026": "Der Report wird gerade zusammengestellt\u2026"
+    ],
+    "The report is currently being generated\u2026": "Der Report wird gerade zusammengestellt\u2026",
+    "You have used {num_used} of 1 submission.": [
+      "Sie haben {num_used} von einer Einreichung verwendet.",
+      "Sie haben {num_used} von {max_attempts} Einreichungen verwendet."
+    ]
   };
   for (var key in newcatalog) {
     django.catalog[key] = newcatalog[key];
@@ -52,7 +56,7 @@
       if (typeof(value) == 'undefined') {
         return (count == 1) ? singular : plural;
       } else {
-        return value[django.pluralidx(count)];
+        return value.constructor === Array ? value[django.pluralidx(count)] : value;
       }
     };
 
@@ -86,36 +90,36 @@
     /* formatting library */
 
     django.formats = {
-    "DATETIME_FORMAT": "j. F Y H:i", 
+    "DATETIME_FORMAT": "j. F Y H:i",
     "DATETIME_INPUT_FORMATS": [
-      "%d.%m.%Y %H:%M:%S", 
-      "%d.%m.%Y %H:%M:%S.%f", 
-      "%d.%m.%Y %H:%M", 
-      "%d.%m.%Y", 
-      "%Y-%m-%d %H:%M:%S", 
-      "%Y-%m-%d %H:%M:%S.%f", 
-      "%Y-%m-%d %H:%M", 
+      "%d.%m.%Y %H:%M:%S",
+      "%d.%m.%Y %H:%M:%S.%f",
+      "%d.%m.%Y %H:%M",
+      "%d.%m.%Y",
+      "%Y-%m-%d %H:%M:%S",
+      "%Y-%m-%d %H:%M:%S.%f",
+      "%Y-%m-%d %H:%M",
       "%Y-%m-%d"
-    ], 
-    "DATE_FORMAT": "j. F Y", 
+    ],
+    "DATE_FORMAT": "j. F Y",
     "DATE_INPUT_FORMATS": [
-      "%d.%m.%Y", 
-      "%d.%m.%y", 
+      "%d.%m.%Y",
+      "%d.%m.%y",
       "%Y-%m-%d"
-    ], 
-    "DECIMAL_SEPARATOR": ",", 
-    "FIRST_DAY_OF_WEEK": "1", 
-    "MONTH_DAY_FORMAT": "j. F", 
-    "NUMBER_GROUPING": "3", 
-    "SHORT_DATETIME_FORMAT": "d.m.Y H:i", 
-    "SHORT_DATE_FORMAT": "d.m.Y", 
-    "THOUSAND_SEPARATOR": ".", 
-    "TIME_FORMAT": "H:i", 
+    ],
+    "DECIMAL_SEPARATOR": ",",
+    "FIRST_DAY_OF_WEEK": 1,
+    "MONTH_DAY_FORMAT": "j. F",
+    "NUMBER_GROUPING": 3,
+    "SHORT_DATETIME_FORMAT": "d.m.Y H:i",
+    "SHORT_DATE_FORMAT": "d.m.Y",
+    "THOUSAND_SEPARATOR": ".",
+    "TIME_FORMAT": "H:i",
     "TIME_INPUT_FORMATS": [
-      "%H:%M:%S", 
-      "%H:%M:%S.%f", 
+      "%H:%M:%S",
+      "%H:%M:%S.%f",
       "%H:%M"
-    ], 
+    ],
     "YEAR_MONTH_FORMAT": "F Y"
   };
 
diff --git a/problem_builder/public/js/translations/es_419/textjs.js b/problem_builder/public/js/translations/es_419/textjs.js
index d4a52b94..d5a969f6 100644
--- a/problem_builder/public/js/translations/es_419/textjs.js
+++ b/problem_builder/public/js/translations/es_419/textjs.js
@@ -30,7 +30,11 @@
       "Resultados obtenidos en <%= creation_time %> (<%= seconds %> second).", 
       "Resultados obtenidos en <%= creation_time %> (<%= seconds %> seconds)."
     ], 
-    "The report is currently being generated\u2026": "El informe se est\u00e1 generando..."
+    "The report is currently being generated\u2026": "El informe se est\u00e1 generando...", 
+    "You have used {num_used} of 1 submission.": [
+      "Ha utilizado {num_used} de 1 presentaci\u00f3n.", 
+      "Ha utilizado {num_used} de {max_attempts} presentaciones."
+    ]
   };
   for (var key in newcatalog) {
     django.catalog[key] = newcatalog[key];
diff --git a/problem_builder/public/js/translations/pl_PL/textjs.js b/problem_builder/public/js/translations/pl_PL/textjs.js
index 4dd91667..a0f3e773 100644
--- a/problem_builder/public/js/translations/pl_PL/textjs.js
+++ b/problem_builder/public/js/translations/pl_PL/textjs.js
@@ -24,15 +24,21 @@
   django.catalog = django.catalog || {};
   
   var newcatalog = {
-    "All": "Wszystkie", 
-    "Data export failed. Reason: <%= error %>": "Eksport danych nie powi\u00f3d\u0142 si\u0119. Przyczyna: <%= error %>", 
+    "All": "Wszystkie",
+    "Data export failed. Reason: <%= error %>": "Eksport danych nie powi\u00f3d\u0142 si\u0119. Przyczyna: <%= error %>",
     "Results retrieved on <%= creation_time %> (<%= seconds %> second).": [
-      "Rezultaty pobrano <%= creation_time %> (<%= seconds %> sekunda).", 
-      "Rezultaty pobrano <%= creation_time %> (<%= seconds %> sekund).", 
-      "Rezultaty pobrano <%= creation_time %> (<%= seconds %> sekund).", 
+      "Rezultaty pobrano <%= creation_time %> (<%= seconds %> sekunda).",
+      "Rezultaty pobrano <%= creation_time %> (<%= seconds %> sekund).",
+      "Rezultaty pobrano <%= creation_time %> (<%= seconds %> sekund).",
       "Rezultaty pobrano <%= creation_time %> (<%= seconds %> sekund)."
-    ], 
-    "The report is currently being generated\u2026": "Generujemy raport..."
+    ],
+    "The report is currently being generated\u2026": "Generujemy raport...",
+    "You have used {num_used} of 1 submission.": [
+      "Wykorzysta\u0142e\u015b {num_used} z 1 zg\u0142oszenia.",
+      "Wykorzysta\u0142e\u015b {num_used} z {max_attempts} zg\u0142osze\u0144.",
+      "",
+      ""
+    ]
   };
   for (var key in newcatalog) {
     django.catalog[key] = newcatalog[key];
@@ -54,7 +60,7 @@
       if (typeof(value) == 'undefined') {
         return (count == 1) ? singular : plural;
       } else {
-        return value[django.pluralidx(count)];
+        return value.constructor === Array ? value[django.pluralidx(count)] : value;
       }
     };
 
@@ -88,37 +94,37 @@
     /* formatting library */
 
     django.formats = {
-    "DATETIME_FORMAT": "j E Y H:i", 
+    "DATETIME_FORMAT": "j E Y H:i",
     "DATETIME_INPUT_FORMATS": [
-      "%d.%m.%Y %H:%M:%S", 
-      "%d.%m.%Y %H:%M:%S.%f", 
-      "%d.%m.%Y %H:%M", 
-      "%d.%m.%Y", 
-      "%Y-%m-%d %H:%M:%S", 
-      "%Y-%m-%d %H:%M:%S.%f", 
-      "%Y-%m-%d %H:%M", 
+      "%d.%m.%Y %H:%M:%S",
+      "%d.%m.%Y %H:%M:%S.%f",
+      "%d.%m.%Y %H:%M",
+      "%d.%m.%Y",
+      "%Y-%m-%d %H:%M:%S",
+      "%Y-%m-%d %H:%M:%S.%f",
+      "%Y-%m-%d %H:%M",
       "%Y-%m-%d"
-    ], 
-    "DATE_FORMAT": "j E Y", 
+    ],
+    "DATE_FORMAT": "j E Y",
     "DATE_INPUT_FORMATS": [
-      "%d.%m.%Y", 
-      "%d.%m.%y", 
-      "%y-%m-%d", 
+      "%d.%m.%Y",
+      "%d.%m.%y",
+      "%y-%m-%d",
       "%Y-%m-%d"
-    ], 
-    "DECIMAL_SEPARATOR": ",", 
-    "FIRST_DAY_OF_WEEK": "1", 
-    "MONTH_DAY_FORMAT": "j F", 
-    "NUMBER_GROUPING": "3", 
-    "SHORT_DATETIME_FORMAT": "d-m-Y  H:i", 
-    "SHORT_DATE_FORMAT": "d-m-Y", 
-    "THOUSAND_SEPARATOR": "\u00a0", 
-    "TIME_FORMAT": "H:i", 
+    ],
+    "DECIMAL_SEPARATOR": ",",
+    "FIRST_DAY_OF_WEEK": 1,
+    "MONTH_DAY_FORMAT": "j E",
+    "NUMBER_GROUPING": 3,
+    "SHORT_DATETIME_FORMAT": "d-m-Y  H:i",
+    "SHORT_DATE_FORMAT": "d-m-Y",
+    "THOUSAND_SEPARATOR": "\u00a0",
+    "TIME_FORMAT": "H:i",
     "TIME_INPUT_FORMATS": [
-      "%H:%M:%S", 
-      "%H:%M:%S.%f", 
+      "%H:%M:%S",
+      "%H:%M:%S.%f",
       "%H:%M"
-    ], 
+    ],
     "YEAR_MONTH_FORMAT": "F Y"
   };
 
diff --git a/problem_builder/public/js/translations/pt_BR/textjs.js b/problem_builder/public/js/translations/pt_BR/textjs.js
index 147d780e..cf225c94 100644
--- a/problem_builder/public/js/translations/pt_BR/textjs.js
+++ b/problem_builder/public/js/translations/pt_BR/textjs.js
@@ -24,13 +24,17 @@
   django.catalog = django.catalog || {};
   
   var newcatalog = {
-    "All": "Tudo",
-    "Data export failed. Reason: <%= error %>": "Falha na exporta\u00e7\u00e3o de dados. Motivo: <%= error %>",
+    "All": "Tudo", 
+    "Data export failed. Reason: <%= error %>": "Falha na exporta\u00e7\u00e3o de dados. Motivo: <%= error %>", 
     "Results retrieved on <%= creation_time %> (<%= seconds %> second).": [
-      "Resultados recuperados em <%= creation_time %> (<%= seconds %> segundo).",
+      "Resultados recuperados em <%= creation_time %> (<%= seconds %> segundo).", 
       "Resultados recuperados em <%= creation_time %> (<%= seconds %> segundos)."
-    ],
-    "The report is currently being generated\u2026": "O relat\u00f3rio est\u00e1 sendo gerado..."
+    ], 
+    "The report is currently being generated\u2026": "O relat\u00f3rio est\u00e1 sendo gerado...", 
+    "You have used {num_used} of 1 submission.": [
+      "Voc\u00ea usou {num_used} de 1 envio.", 
+      "Voc\u00ea usou {num_used} de {max_attempts} envios."
+    ]
   };
   for (var key in newcatalog) {
     django.catalog[key] = newcatalog[key];
@@ -86,40 +90,40 @@
     /* formatting library */
 
     django.formats = {
-    "DATETIME_FORMAT": "j \\d\\e F \\d\\e Y \u00e0\\s H:i",
+    "DATETIME_FORMAT": "j \\d\\e F \\d\\e Y \u00e0\\s H:i", 
     "DATETIME_INPUT_FORMATS": [
-      "%d/%m/%Y %H:%M:%S",
-      "%d/%m/%Y %H:%M:%S.%f",
-      "%d/%m/%Y %H:%M",
-      "%d/%m/%Y",
-      "%d/%m/%y %H:%M:%S",
-      "%d/%m/%y %H:%M:%S.%f",
-      "%d/%m/%y %H:%M",
-      "%d/%m/%y",
-      "%Y-%m-%d %H:%M:%S",
-      "%Y-%m-%d %H:%M:%S.%f",
-      "%Y-%m-%d %H:%M",
+      "%d/%m/%Y %H:%M:%S", 
+      "%d/%m/%Y %H:%M:%S.%f", 
+      "%d/%m/%Y %H:%M", 
+      "%d/%m/%Y", 
+      "%d/%m/%y %H:%M:%S", 
+      "%d/%m/%y %H:%M:%S.%f", 
+      "%d/%m/%y %H:%M", 
+      "%d/%m/%y", 
+      "%Y-%m-%d %H:%M:%S", 
+      "%Y-%m-%d %H:%M:%S.%f", 
+      "%Y-%m-%d %H:%M", 
       "%Y-%m-%d"
-    ],
-    "DATE_FORMAT": "j \\d\\e F \\d\\e Y",
+    ], 
+    "DATE_FORMAT": "j \\d\\e F \\d\\e Y", 
     "DATE_INPUT_FORMATS": [
-      "%d/%m/%Y",
-      "%d/%m/%y",
+      "%d/%m/%Y", 
+      "%d/%m/%y", 
       "%Y-%m-%d"
-    ],
-    "DECIMAL_SEPARATOR": ",",
-    "FIRST_DAY_OF_WEEK": "0",
-    "MONTH_DAY_FORMAT": "j \\d\\e F",
-    "NUMBER_GROUPING": "3",
-    "SHORT_DATETIME_FORMAT": "d/m/Y H:i",
-    "SHORT_DATE_FORMAT": "d/m/Y",
-    "THOUSAND_SEPARATOR": ".",
-    "TIME_FORMAT": "H:i",
+    ], 
+    "DECIMAL_SEPARATOR": ",", 
+    "FIRST_DAY_OF_WEEK": "0", 
+    "MONTH_DAY_FORMAT": "j \\d\\e F", 
+    "NUMBER_GROUPING": "3", 
+    "SHORT_DATETIME_FORMAT": "d/m/Y H:i", 
+    "SHORT_DATE_FORMAT": "d/m/Y", 
+    "THOUSAND_SEPARATOR": ".", 
+    "TIME_FORMAT": "H:i", 
     "TIME_INPUT_FORMATS": [
-      "%H:%M:%S",
-      "%H:%M:%S.%f",
+      "%H:%M:%S", 
+      "%H:%M:%S.%f", 
       "%H:%M"
-    ],
+    ], 
     "YEAR_MONTH_FORMAT": "F \\d\\e Y"
   };
 
diff --git a/problem_builder/public/js/translations/zh_CN/textjs.js b/problem_builder/public/js/translations/zh_CN/textjs.js
index 9340e23e..d349f6b0 100644
--- a/problem_builder/public/js/translations/zh_CN/textjs.js
+++ b/problem_builder/public/js/translations/zh_CN/textjs.js
@@ -27,9 +27,14 @@
     "All": "\u5168\u90e8", 
     "Data export failed. Reason: <%= error %>": "\u6570\u636e\u5bfc\u51fa\u5931\u8d25\u3002\u539f\u56e0\uff1a<%= error %>", 
     "Results retrieved on <%= creation_time %> (<%= seconds %> second).": [
-      "<%= creation_time %> (<%= seconds %> second) \u65f6\u68c0\u7d22\u5230\u7684\u7ed3\u679c\u3002"
+      "<%= creation_time %> (<%= seconds %> \u79d2) \u65f6\u68c0\u7d22\u5230\u7684\u7ed3\u679c\u3002", 
+      "<%= creation_time %> (<%= seconds %> \u79d2) \u65f6\u68c0\u7d22\u5230\u7684\u7ed3\u679c\u3002"
     ], 
-    "The report is currently being generated\u2026": "\u76ee\u524d\u6b63\u5728\u751f\u6210\u62a5\u544a\u2026"
+    "The report is currently being generated\u2026": "\u76ee\u524d\u6b63\u5728\u751f\u6210\u62a5\u544a\u2026", 
+    "You have used {num_used} of 1 submission.": [
+      "\u60a8\u5df2\u4f7f\u7528 {num_used} \u6b21\u63d0\u4ea4\uff08\u5171 1 \u6b21\uff09\u3002", 
+      "\u60a8\u5df2\u4f7f\u7528 {num_used} \u6b21\u63d0\u4ea4\uff08\u5171 {max_attempts} \u6b21\uff09"
+    ]
   };
   for (var key in newcatalog) {
     django.catalog[key] = newcatalog[key];
diff --git a/problem_builder/translations/ar/LC_MESSAGES/text.mo b/problem_builder/translations/ar/LC_MESSAGES/text.mo
index d90fb320..1c60eea6 100644
Binary files a/problem_builder/translations/ar/LC_MESSAGES/text.mo and b/problem_builder/translations/ar/LC_MESSAGES/text.mo differ
diff --git a/problem_builder/translations/ar/LC_MESSAGES/text.po b/problem_builder/translations/ar/LC_MESSAGES/text.po
index 9468a90c..5959127c 100644
--- a/problem_builder/translations/ar/LC_MESSAGES/text.po
+++ b/problem_builder/translations/ar/LC_MESSAGES/text.po
@@ -2,7 +2,7 @@
 # Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
 # This file is distributed under the same license as the PACKAGE package.
 # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
-# 
+#
 # Translators:
 # 6e68c7971a89e50e680ae9444d303c8f, 2019
 # Ahmad AbdArrahman <mygooglizer@gmail.com>, 2019
@@ -16,7 +16,7 @@
 # shefaa abu jabel <shefaa.aj@gmail.com>, 2019
 # Roy Zakka, 2019
 # Sahbi BG <sahbi.g@gmail.com>, 2019
-# 
+#
 #, fuzzy
 msgid ""
 msgstr ""
@@ -372,15 +372,15 @@ msgstr ""
 
 #: instructor_tool.py:58 templates/html/instructor_tool.html:2
 msgid "Instructor Tool"
-msgstr ""
+msgstr "أداة المعلم"
 
 #: instructor_tool.py:137 mcq.py:53
 msgid "Multiple Choice Question"
-msgstr ""
+msgstr "سؤال متعدد الاختيارات"
 
 #: instructor_tool.py:138 mrq.py:51
 msgid "Multiple Response Question"
-msgstr ""
+msgstr "سؤال متعدد الإجابات"
 
 #: instructor_tool.py:139 mcq.py:198
 msgid "Rating Question"
@@ -1221,19 +1221,19 @@ msgstr ""
 
 #: templates/html/instructor_tool.html:12
 msgid "Username[s]:"
-msgstr ""
+msgstr "اسم المستخدم (أسماء المستخدمين):"
 
 #: templates/html/instructor_tool.html:13
 msgid "Enter one or more usernames, comma separated."
-msgstr ""
+msgstr "أدخل اسم مستخدم واحد أو أكثر، مفصولاً بفاصلة."
 
 #: templates/html/instructor_tool.html:20
 msgid "Text:"
-msgstr ""
+msgstr "النص:"
 
 #: templates/html/instructor_tool.html:30
 msgid "Section/Question:"
-msgstr ""
+msgstr "القسم/السؤال:"
 
 #: templates/html/instructor_tool.html:32
 #: templates/html/instructor_tool.html:42
@@ -1242,7 +1242,7 @@ msgstr "الكل"
 
 #: templates/html/instructor_tool.html:40
 msgid "Problem types:"
-msgstr ""
+msgstr "أنواع المشكلة:"
 
 #: templates/html/instructor_tool.html:51
 msgid "Search"
@@ -1270,7 +1270,7 @@ msgstr "اسم المستخدم"
 
 #: templates/html/instructor_tool.html:74
 msgid "First"
-msgstr ""
+msgstr "الأول"
 
 #: templates/html/instructor_tool.html:75
 msgid "Prev"
@@ -1282,19 +1282,19 @@ msgstr "التالي"
 
 #: templates/html/instructor_tool.html:78
 msgid "Last"
-msgstr ""
+msgstr "الأخير"
 
 #: templates/html/instructor_tool.html:85
 msgid "Download as CSV"
-msgstr ""
+msgstr "تنزيل بتنسيق CSV"
 
 #: templates/html/instructor_tool.html:86
 msgid "Cancel search"
-msgstr ""
+msgstr "إلغاء البحث"
 
 #: templates/html/instructor_tool.html:87
 msgid "Delete results"
-msgstr ""
+msgstr "حذف النتائج"
 
 #: templates/html/mentoring-column-add-button.html:6
 msgid "Add HTML"
@@ -1361,7 +1361,7 @@ msgstr "تقديم"
 #: templates/html/mentoring.html:47
 #: templates/html/mentoring_with_steps.html:31
 msgid "Review final grade"
-msgstr ""
+msgstr "راجع الدرجة الأخيرة"
 
 #: templates/html/mentoring.html:51
 #: templates/html/mentoring_with_steps.html:35
@@ -1475,16 +1475,16 @@ msgstr ""
 msgid ""
 "You might consider reviewing the following items before your next assessment"
 " attempt:"
-msgstr ""
+msgstr "ربما عليك التفكير في مراجعة العناصر التالية قبل محاولة التقييم التالية:"
 
 #: templates/html/sb-review-score.html:5
 #, python-format
 msgid "You scored %(score)s%% on this assessment. "
-msgstr ""
+msgstr "أحرزت نتيجة %(score)s%% في هذا التقييم."
 
 #: templates/html/sb-review-score.html:8
 msgid "Click a question to review feedback on your response."
-msgstr ""
+msgstr "انقر على سؤال لمراجعة التعليقات على إجابتك."
 
 #: templates/html/sb-review-score.html:12
 msgid "Note: This is an example score, to show how the review step will look."
@@ -1501,11 +1501,13 @@ msgid_plural ""
 "          You answered %(correct_answers)s questions correctly.\n"
 "        "
 msgstr[0] ""
+"\n"
+"          جاوبت عن سؤال واحد بشكل صحيح.\n"
+"        "
 msgstr[1] ""
-msgstr[2] ""
-msgstr[3] ""
-msgstr[4] ""
-msgstr[5] ""
+"\n"
+"          جاوبت عن %(correct_answers)s من الأسئلة بشكل صحيح.\n"
+"        "
 
 #: templates/html/sb-review-score.html:30
 #: templates/html/sb-review-score.html:53
@@ -1518,7 +1520,7 @@ msgstr "و"
 #: templates/html/sb-review-score.html:77
 #, python-format
 msgid "Question %(number)s"
-msgstr ""
+msgstr "السؤال %(number)s"
 
 #: templates/html/sb-review-score.html:43
 #, python-format
@@ -1531,11 +1533,13 @@ msgid_plural ""
 "          You answered %(partially_correct_answers)s questions partially correctly.\n"
 "        "
 msgstr[0] ""
+"\n"
+"          جاوبت عن سؤال واحد بشكل صحيح جزئيًا.\n"
+"        "
 msgstr[1] ""
-msgstr[2] ""
-msgstr[3] ""
-msgstr[4] ""
-msgstr[5] ""
+"\n"
+"          جاوبت عن %(partially_correct_answers)s من الأسئلة بشكل صحيح جزئيًا.\n"
+"        "
 
 #: templates/html/sb-review-score.html:66
 #, python-format
@@ -1548,11 +1552,13 @@ msgid_plural ""
 "          You answered %(incorrect_answers)s questions incorrectly.\n"
 "        "
 msgstr[0] ""
+"\n"
+"          جاوبت عن سؤال واحد بشكل غير صحيح.\n"
+"        "
 msgstr[1] ""
-msgstr[2] ""
-msgstr[3] ""
-msgstr[4] ""
-msgstr[5] ""
+"\n"
+"          جاوبت عن %(incorrect_answers)s من الأسئلة بشكل غير صحيح.\n"
+"        "
 
 #: templates/html/slider_edit_footer.html:3
 msgid "ID for referencing this slider:"
diff --git a/problem_builder/translations/de_DE/LC_MESSAGES/textjs.mo b/problem_builder/translations/de_DE/LC_MESSAGES/textjs.mo
index 1ffa9ffe..cc3cfb0f 100644
Binary files a/problem_builder/translations/de_DE/LC_MESSAGES/textjs.mo and b/problem_builder/translations/de_DE/LC_MESSAGES/textjs.mo differ
diff --git a/problem_builder/translations/de_DE/LC_MESSAGES/textjs.po b/problem_builder/translations/de_DE/LC_MESSAGES/textjs.po
index 2719f70a..330fd6ed 100644
--- a/problem_builder/translations/de_DE/LC_MESSAGES/textjs.po
+++ b/problem_builder/translations/de_DE/LC_MESSAGES/textjs.po
@@ -3,16 +3,16 @@
 # Copyright (C) 2019 ORGANIZATION
 # This file is distributed under the same license as the PROJECT project.
 # FIRST AUTHOR <EMAIL@ADDRESS>, 2019.
-# 
+#
 # #-#-#-#-#  djangojs-partial.po (PACKAGE VERSION)  #-#-#-#-#
 # SOME DESCRIPTIVE TITLE.
 # Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
 # This file is distributed under the same license as the PACKAGE package.
 # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
-# 
+#
 # Translators:
 # Omar Al-Ithawi <i@omardo.com>, 2019
-# 
+#
 #, fuzzy
 msgid ""
 msgstr ""
@@ -33,8 +33,8 @@ msgstr ""
 #: templates/html/mentoring_attempts.underscore:5
 msgid "You have used {num_used} of 1 submission."
 msgid_plural "You have used {num_used} of {max_attempts} submissions."
-msgstr[0] ""
-msgstr[1] ""
+msgstr[0] "Sie haben {num_used} von einer Einreichung verwendet."
+msgstr[1] "Sie haben {num_used} von {max_attempts} Einreichungen verwendet."
 
 #: public/js/instructor_tool.js:349
 msgid "All"
diff --git a/problem_builder/translations/es_419/LC_MESSAGES/textjs.mo b/problem_builder/translations/es_419/LC_MESSAGES/textjs.mo
index 8ca0a320..40ca11a9 100644
Binary files a/problem_builder/translations/es_419/LC_MESSAGES/textjs.mo and b/problem_builder/translations/es_419/LC_MESSAGES/textjs.mo differ
diff --git a/problem_builder/translations/es_419/LC_MESSAGES/textjs.po b/problem_builder/translations/es_419/LC_MESSAGES/textjs.po
index 96397423..379e6131 100644
--- a/problem_builder/translations/es_419/LC_MESSAGES/textjs.po
+++ b/problem_builder/translations/es_419/LC_MESSAGES/textjs.po
@@ -3,16 +3,16 @@
 # Copyright (C) 2019 ORGANIZATION
 # This file is distributed under the same license as the PROJECT project.
 # FIRST AUTHOR <EMAIL@ADDRESS>, 2019.
-# 
+#
 # #-#-#-#-#  djangojs-partial.po (PACKAGE VERSION)  #-#-#-#-#
 # SOME DESCRIPTIVE TITLE.
 # Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
 # This file is distributed under the same license as the PACKAGE package.
 # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
-# 
+#
 # Translators:
 # Omar Al-Ithawi <i@omardo.com>, 2019
-# 
+#
 #, fuzzy
 msgid ""
 msgstr ""
@@ -33,8 +33,8 @@ msgstr ""
 #: templates/html/mentoring_attempts.underscore:5
 msgid "You have used {num_used} of 1 submission."
 msgid_plural "You have used {num_used} of {max_attempts} submissions."
-msgstr[0] ""
-msgstr[1] ""
+msgstr[0] "Ha utilizado {num_used} de 1 presentación."
+msgstr[1] "Ha utilizado {num_used} de {max_attempts} presentaciones."
 
 #: public/js/instructor_tool.js:349
 msgid "All"
diff --git a/problem_builder/translations/pl_PL/LC_MESSAGES/textjs.mo b/problem_builder/translations/pl_PL/LC_MESSAGES/textjs.mo
index d1e4c120..537f6874 100644
Binary files a/problem_builder/translations/pl_PL/LC_MESSAGES/textjs.mo and b/problem_builder/translations/pl_PL/LC_MESSAGES/textjs.mo differ
diff --git a/problem_builder/translations/pl_PL/LC_MESSAGES/textjs.po b/problem_builder/translations/pl_PL/LC_MESSAGES/textjs.po
index 01ef1eb2..57ea322b 100644
--- a/problem_builder/translations/pl_PL/LC_MESSAGES/textjs.po
+++ b/problem_builder/translations/pl_PL/LC_MESSAGES/textjs.po
@@ -3,16 +3,16 @@
 # Copyright (C) 2019 ORGANIZATION
 # This file is distributed under the same license as the PROJECT project.
 # FIRST AUTHOR <EMAIL@ADDRESS>, 2019.
-# 
+#
 # #-#-#-#-#  djangojs-partial.po (PACKAGE VERSION)  #-#-#-#-#
 # SOME DESCRIPTIVE TITLE.
 # Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
 # This file is distributed under the same license as the PACKAGE package.
 # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
-# 
+#
 # Translators:
 # Omar Al-Ithawi <i@omardo.com>, 2019
-# 
+#
 #, fuzzy
 msgid ""
 msgstr ""
@@ -33,10 +33,8 @@ msgstr ""
 #: templates/html/mentoring_attempts.underscore:5
 msgid "You have used {num_used} of 1 submission."
 msgid_plural "You have used {num_used} of {max_attempts} submissions."
-msgstr[0] ""
-msgstr[1] ""
-msgstr[2] ""
-msgstr[3] ""
+msgstr[0] "Wykorzystałeś {num_used} z 1 zgłoszenia."
+msgstr[1] "Wykorzystałeś {num_used} z {max_attempts} zgłoszeń."
 
 #: public/js/instructor_tool.js:349
 msgid "All"
diff --git a/problem_builder/translations/pt_BR/LC_MESSAGES/textjs.mo b/problem_builder/translations/pt_BR/LC_MESSAGES/textjs.mo
index 04a9a146..82d452c4 100644
Binary files a/problem_builder/translations/pt_BR/LC_MESSAGES/textjs.mo and b/problem_builder/translations/pt_BR/LC_MESSAGES/textjs.mo differ
diff --git a/problem_builder/translations/pt_BR/LC_MESSAGES/textjs.po b/problem_builder/translations/pt_BR/LC_MESSAGES/textjs.po
index ac4bdc19..d7bb0733 100644
--- a/problem_builder/translations/pt_BR/LC_MESSAGES/textjs.po
+++ b/problem_builder/translations/pt_BR/LC_MESSAGES/textjs.po
@@ -34,8 +34,8 @@ msgstr ""
 #: templates/html/mentoring_attempts.underscore:5
 msgid "You have used {num_used} of 1 submission."
 msgid_plural "You have used {num_used} of {max_attempts} submissions."
-msgstr[0] ""
-msgstr[1] ""
+msgstr[0] "Você usou {num_used} de 1 envio."
+msgstr[1] "Você usou {num_used} de {max_attempts} envios."
 
 #: public/js/instructor_tool.js:349
 msgid "All"
diff --git a/problem_builder/translations/zh_CN/LC_MESSAGES/textjs.mo b/problem_builder/translations/zh_CN/LC_MESSAGES/textjs.mo
index 564d64d3..ec3cf9b1 100644
Binary files a/problem_builder/translations/zh_CN/LC_MESSAGES/textjs.mo and b/problem_builder/translations/zh_CN/LC_MESSAGES/textjs.mo differ
diff --git a/problem_builder/translations/zh_CN/LC_MESSAGES/textjs.po b/problem_builder/translations/zh_CN/LC_MESSAGES/textjs.po
index 9d25d81e..fb487d28 100644
--- a/problem_builder/translations/zh_CN/LC_MESSAGES/textjs.po
+++ b/problem_builder/translations/zh_CN/LC_MESSAGES/textjs.po
@@ -3,17 +3,17 @@
 # Copyright (C) 2019 ORGANIZATION
 # This file is distributed under the same license as the PROJECT project.
 # FIRST AUTHOR <EMAIL@ADDRESS>, 2019.
-# 
+#
 # #-#-#-#-#  djangojs-partial.po (PACKAGE VERSION)  #-#-#-#-#
 # SOME DESCRIPTIVE TITLE.
 # Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
 # This file is distributed under the same license as the PACKAGE package.
 # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
-# 
+#
 # Translators:
 # HYY <wingyin.wong@outlook.com>, 2019
 # Omar Al-Ithawi <i@omardo.com>, 2019
-# 
+#
 #, fuzzy
 msgid ""
 msgstr ""
@@ -34,7 +34,8 @@ msgstr ""
 #: templates/html/mentoring_attempts.underscore:5
 msgid "You have used {num_used} of 1 submission."
 msgid_plural "You have used {num_used} of {max_attempts} submissions."
-msgstr[0] ""
+msgstr[0] "您已使用 {num_used} 次提交（共 1 次）。"
+msgstr[1] "您已使用 {num_used} 次提交（共 {max_attempts} 次）"
 
 #: public/js/instructor_tool.js:349
 msgid "All"
@@ -48,7 +49,8 @@ msgstr "数据导出失败。原因：<%= error %>"
 msgid "Results retrieved on <%= creation_time %> (<%= seconds %> second)."
 msgid_plural ""
 "Results retrieved on <%= creation_time %> (<%= seconds %> seconds)."
-msgstr[0] "<%= creation_time %> (<%= seconds %> second) 时检索到的结果。"
+msgstr[0] "<%= creation_time %> (<%= seconds %> 秒) 时检索到的结果。"
+msgstr[1] "<%= creation_time %> (<%= seconds %> 秒) 时检索到的结果。"
 
 #: public/js/instructor_tool.js:429
 msgid "The report is currently being generated…"
diff --git a/setup.py b/setup.py
index 4f342222..60ad28a1 100644
--- a/setup.py
+++ b/setup.py
@@ -28,7 +28,7 @@
 
 # Constants #########################################################
 
-VERSION = '3.5.2'
+VERSION = '3.5.3'
 
 # Functions #########################################################