Problem: Continue the following story.

William has an easier time than Christopher when straightening their hair because 
OPTIONS:
- William doesn't have naturally curly hair.
- Christopher doesn't have naturally curly hair.
Here's how I want to continue it: William doesn't have naturally curly hair.
Problem: Kyle yelled at Samuel for not filling up the entire popcorn bucket at the movies.  
OPTIONS:
- Kyle was upset about getting ripped off.
- Samuel was upset about getting ripped off.

My choice: Kyle was upset about getting ripped off.
[Q]: How does the sentence end?

The roof collapsed under the weight of the meteor strike, but the floor stood firm, since the 
OPTIONS:
- roof was so brittle.
- floor was so brittle.

[A]: roof was so brittle.
QUES: Continue writing.

The blades worked a lot better than the razors from the shop because the 

OPTIONS:
- blades were sharp.
- razors were sharp.
+++++++++
ANS: blades were sharp.
Problem: How does the sentence end?

Christine couldn't control their emotions during the movie unlike Erin because 
OPTIONS:
- Christine had a reserved personality.
- Erin had a reserved personality.
Answer: Erin had a reserved personality.
sentence: The hairdresser used a comb on her client instead of a brush because the  OPTIONS:
- comb was thick-bristled.
- brush was thick-bristled.
complete:
brush was thick-bristled.