[Q]: How does the sentence end?

Leslie got a much higher grade on the exam than Dennis because 

[A]: Leslie spent a long time studying.


[Q]: How does the sentence end?

The cleanser was a better solution to the acne than the cream, so the 

[A]: cleanser is probably stronger.


[Q]: How does the sentence end?

Tanya was a better judge of a boy's character than Betty and this showed because 

[A]:
Tanya had a nice boyfriend.