Problem: How does the sentence end?

The jacket looked out of place on the mannequin because the 
OPTIONS:
- jacket was too big.
- mannequin was too big.
Answer: jacket was too big.
sentence: The man's profile did not fit onto one page because the  OPTIONS:
- profile was too short.
- page was too short.
complete: page was too short.
The art gallery always displayed more drawings than paintings, since 
OPTIONS:
- drawings were much more popular.
- paintings were much more popular.
drawings were much more popular.
Input: Continue writing.

The cold weather permeated the garage but not the house since the 
OPTIONS:
- garage was insulated from it.
- house was insulated from it.

Continued: house was insulated from it.
Story needs to be completed:
The new pillow still sticks out after it is pushed all in way into the blue pillowcase. The 
OPTIONS:
- pillow is too short.
- pillowcase is too short.

My choice:
pillowcase is too short.
Problem: How does the sentence end?

Mary gave a framed picture as a gift to Amy because 
OPTIONS:
- Mary was having a birthday party.
- Amy was having a birthday party.
Answer:
Amy was having a birthday party.