Problem: How does the sentence end?

The woman tried to put the books on the couches but the 
OPTIONS:
- couches were too small.
- books were too small.
Answer: couches were too small.
sentence: The couple wanted to move into a larger house because their family was growing; and the  OPTIONS:
- family was too big.
- house was too big.
complete: family was too big.
He thought the city was simple to drive through compared to the country, because the 
OPTIONS:
- city map had accurate directions.
- country map had accurate directions.
city map had accurate directions.
Input: Continue writing.

The surface was a lot hotter than the floor, because the 
OPTIONS:
- surface was in direct sunlight.
- floor was in direct sunlight.

Continued: surface was in direct sunlight.
Story needs to be completed:
Talking to strangers suits Christine a lot more than it does Rachel. Because 
OPTIONS:
- Christine is an extrovert and likes the conversation.
- Rachel is an extrovert and likes the conversation.

My choice:
Christine is an extrovert and likes the conversation.
Problem: How does the sentence end?

The man worked for hours to clean the carpet with his vacuum, but the 
OPTIONS:
- carpet didn't look clean.
- vacuum didn't look clean.
Answer:
carpet didn't look clean.