[Q]: How does the sentence end?

In depth mathematical problem-solving suited Kyle but not Kenneth because 

[A]: Kenneth did not have an analytical mind.


[Q]: How does the sentence end?

Robert 's dog got sick, so Ryan gave him a cure because 

[A]: Ryan was the veterinarian.


[Q]: How does the sentence end?

For our 5:30 PM flight we took the 5 PM train, and were worried about time.  Fortunately, the 

[A]:
flight was delayed, so we caught our airplane in time.