Problem: How does the sentence end?

Justin excitedly told Robert that he was going to take up auto racing as a career.  
OPTIONS:
- Justin was eager.
- Robert was eager.
Answer: Justin was eager.
sentence: Kenneth spoke to Christopher in French even though  OPTIONS:
- Kenneth could not speak it very well.
- Christopher could not speak it very well.
complete: Kenneth could not speak it very well.
Brett has much duller teeth than Kenneth does because 
OPTIONS:
- Brett has better dental hygiene overall.
- Kenneth has better dental hygiene overall.
Kenneth has better dental hygiene overall.
Input: Continue writing.

Betty did Maria's nails with a special marbling effect she knew, because 
OPTIONS:
- Betty had good nails.
- Maria had good nails.

Continued: Maria had good nails.
Story needs to be completed:
James needed to reduce the sound of his music whenever he is in the neighborhood because the 
OPTIONS:
- music is quiet.
- neighborhood is quiet.

My choice:
neighborhood is quiet.
Problem: How does the sentence end?

Working on xlab research hits on mechanical turk was easier for Kyle than Kevin because 
OPTIONS:
- Kyle had a lively imagination.
- Kevin had a lively imagination.
Answer:
Kyle had a lively imagination.