Problem: How does the sentence end?

The container was filled with water and milk, but the container burst and the 
OPTIONS:
- milk was the lighter liquid.
- water was the lighter liquid.
Answer: water was the lighter liquid.
sentence: Felicia got married early while Kayla didn't find love until late in life because  OPTIONS:
- Felicia is quite beautiful.
- Kayla is quite beautiful.
complete: Felicia is quite beautiful.
The man liked the diet drinks, but hated the diet foods, because the 
OPTIONS:
- foods tasted wonderful.
- drinks tasted wonderful.
drinks tasted wonderful.
Input: Continue writing.

Jason wants to become a pilot so he asks his tutor Benjamin for extra hours, because 
OPTIONS:
- Jason is not ready.
- Benjamin is not ready.

Continued: Jason is not ready.
Story needs to be completed:
Bill's new science text book would not fit in his old backpack, the 
OPTIONS:
- backpack was too narrow.
- book was too narrow.

My choice:
backpack was too narrow.
Problem: How does the sentence end?

George wanted to use the fireplace to heat the house and not the heater because the 
OPTIONS:
- fireplace was cheaper.
- heater was cheaper.
Answer:
fireplace was cheaper.