Problem: How does the sentence end?

Elena brought the really nice and cool shoes from Rachel because 
OPTIONS:
- Elena is the buyer.
- Rachel is the buyer.
Answer: Elena is the buyer.
sentence: Brett gave Christopher money to buy some new jeans; then  OPTIONS:
- Brett asked for more money for a matching shirt.
- Christopher asked for more money for a matching shirt.
complete: Christopher asked for more money for a matching shirt.
Felicia enjoyed watching all the action while Emily played on the field, because 
OPTIONS:
- Felicia was an avid athlete.
- Emily was an avid athlete.
Emily was an avid athlete.
Input: Continue writing.

Adam gave Steven a work suspension of three days for failing to complete the job because 
OPTIONS:
- Adam was the subordinate.
- Steven was the subordinate.

Continued: Steven was the subordinate.
Story needs to be completed:
Derrick lost weight more slowly than Robert because 
OPTIONS:
- Derrick exercised about three times a week.
- Robert exercised about three times a week.

My choice:
Robert exercised about three times a week.
Problem: How does the sentence end?

The new air conditioner needed to be placed on the cement pad, but the 
OPTIONS:
- air conditioner was too small.
- cement pad was too small.
Answer:
cement pad was too small.