Problem: How does the sentence end?

Joel had to prepare a fancy dinner for Robert, because 
OPTIONS:
- Joel had been hired as a chef.
- Robert had been hired as a chef.
Answer: Joel had been hired as a chef.
sentence: The lab tech poured the urine from the sample cup into the testing device until the  OPTIONS:
- sample cup was full.
- testing device was full.
complete: testing device was full.
When the monkey flung poo at the crowd, Amy was quick to duck but not Tanya. 
OPTIONS:
- Amy got hit with poo on their clothes.
- Tanya got hit with poo on their clothes.
Tanya got hit with poo on their clothes.
Input: Continue writing.

The dog of William was taller than the dog of Samuel because the dog of 
OPTIONS:
- William was several years older.
- Samuel was several years older.

Continued: William was several years older.
Story needs to be completed:
Nick took his dog to obedience classes but Aaron refused to so 
OPTIONS:
- Nick had a well behaved Pit Bull.
- Aaron had a well behaved Pit Bull.

My choice:
Nick had a well behaved Pit Bull.
Problem: How does the sentence end?

Michael received a pet from Christopher  because 
OPTIONS:
- Michael wanted to show the other how loved they are.
- Christopher wanted to show the other how loved they are.
Answer:
Christopher wanted to show the other how loved they are.