Problem: Rachel is teaching Samantha how to read a book that is very interesting, since 
OPTIONS:
- Rachel is a teacher.
- Samantha is a teacher.

My choice: Rachel is a teacher.
[Q]: How does the sentence end?

They wanted to purchase a new home instead of renting an apartment, but the 
OPTIONS:
- home is cheap.
- apartment is cheap.

[A]: apartment is cheap.
QUES: Continue writing.

The bestselling book was written by Angela and the failing book was written by Betty, because 

OPTIONS:
- Angela was a substandard writer.
- Betty was a substandard writer.
+++++++++
ANS: Betty was a substandard writer.
Problem: How does the sentence end?

They banned the shirts from the venue but allowed the jackets.  The 
OPTIONS:
- shirts were considered just right for the occasion.
- jackets were considered just right for the occasion.
Answer: jackets were considered just right for the occasion.
sentence: Felicia's accounting class was going well, but Mary's was not because  OPTIONS:
- Felicia had an arrogant professor.
- Mary had an arrogant professor.
complete: Mary had an arrogant professor.
Input: Continue writing.

Mary made a fancy cheesecake to celebrate Rebecca's birthday, but 
OPTIONS:
- Mary messed up the recipe.
- Rebecca messed up the recipe.

Continued:
Mary messed up the recipe.