Problem: How does the sentence end?

The doctor wanted to put the blood in the vial but the 
OPTIONS:
- vial was too thick.
- blood was too thick.
Answer: blood was too thick.
sentence: Amy was more unfamiliar with the game than Megan, so  OPTIONS:
- Amy was the one chosen to play first.
- Megan was the one chosen to play first.
complete: Megan was the one chosen to play first.
The baseboard got damaged under the box that John placed on it. The 
OPTIONS:
- box is very weak.
- baseboard is very weak.
baseboard is very weak.
Input: Continue writing.

Jessica applied the serum carefully with a small brush before going over it with a roller, because the 
OPTIONS:
- roller always had to be used first.
- brush always had to be used first.

Continued: brush always had to be used first.
Story needs to be completed:
Wanting to stand out, the woman purchased the leggings instead of the tights because the 
OPTIONS:
- leggings were more common.
- tights were more common.

My choice:
tights were more common.
Problem: How does the sentence end?

The man wanted to put the box in the office but the 
OPTIONS:
- office was too small.
- box was too small.
Answer:
office was too small.