Problem: Continue the following story.

Kayla hated short nails, so when Erin trimmed hers too short at the salon, 
OPTIONS:
- Kayla got angry.
- Erin got angry.
Here's how I want to continue it: Kayla got angry.
Problem: Monica needed help from Erin understanding the benefits because 
OPTIONS:
- Monica had paid attention to the insurance plan.
- Erin had paid attention to the insurance plan.

My choice: Erin had paid attention to the insurance plan.
[Q]: How does the sentence end?

The hairdresser used a comb on her client instead of a brush because the 
OPTIONS:
- comb was thick-bristled.
- brush was thick-bristled.

[A]: brush was thick-bristled.
QUES: Continue writing.

The toys went unsold when left on the shelves, but sold like hotcakes when put on the counters, as the 

OPTIONS:
- shelves were hidden from customers.
- counters were hidden from customers.
+++++++++
ANS: shelves were hidden from customers.
Problem: How does the sentence end?

The sales person tried to store the doughnuts in the display cases but the 
OPTIONS:
- doughnuts were too small.
- cases were too small.
Answer: cases were too small.
sentence: The janitor tried using different chemicals to clean the fingerprints from the screen but the  OPTIONS:
- fingerprints were too dark.
- chemicals were too dark.
complete:
fingerprints were too dark.