[Q]: How does the sentence end?

Most people write on desks and not on the carpet because the surface of the 
OPTIONS:
- carpet is flat.
- desk is flat.

[A]: desk is flat.
QUES: Continue writing.

The floor looked better with the carpet than with the mat, because the 

OPTIONS:
- carpet was clashing.
- mat was clashing.
+++++++++
ANS: mat was clashing.
Problem: How does the sentence end?

Sara told her husband he should use the sheet to hang himself and not the scarf, because the 
OPTIONS:
- sheet was shorter.
- scarf was shorter.
Answer: scarf was shorter.
sentence: The mother allowed Elena, but not Emily to have a pet fish because  OPTIONS:
- Elena was inattentive to pets.
- Emily was inattentive to pets.
complete: Emily was inattentive to pets.
Jessica had blood drawn at the hospital by Christine because 
OPTIONS:
- Jessica was the phlebotomist having tests run.
- Christine was the phlebotomist having tests run.
Christine was the phlebotomist having tests run.
Problem: Continue the following story.

Carrie but not Samantha went to the gynecologist to ask for birth control because 
OPTIONS:
- Carrie had regular menstruation.
- Samantha had regular menstruation.
Here's how I want to continue it:
Samantha had regular menstruation.