[Q]: How does the sentence end?

Joseph did better at school than Hunter because 

[A]: Joseph was always in the library studying.


[Q]: How does the sentence end?

The shoe salesman tried to fit the shoe onto the heel but the 

[A]: heel was too large.


[Q]: How does the sentence end?

Steven bought some donuts to treat Brian because fortunately  

[A]:
Steven was feeling generous this morning.