[Q]: How does the sentence end?

Kai used a pen instead of crayon to write a letter because the line written by the 

[A]: pen is precise.


[Q]: How does the sentence end?

It was obvious that the beagle belonged to Sarah and not Rachel because 

[A]: Rachel despised beagles.


[Q]: How does the sentence end?

Katrina was a shoe fanatic but Carrie was not. 

[A]:
Katrina had 100 pairs of shoes.