[Q]: How does the sentence end?

Maria wanted a pet gerbil while Betty insisted on a cat. 

[A]: Betty had never particularly liked rodents.


[Q]: How does the sentence end?

Eye surgery must be performed on Christopher but not Michael because 

[A]: Michael doesn't have cataracts in either eye.


[Q]: How does the sentence end?

The pool party was held at Justin's house and not Aaron's because 

[A]:
Justin pool was bigger.