[Q]: How does the sentence end?

Felicia goes out wearing a scarf but Rebecca does not. This is because

[A]: Rebecca is hot.

[Q]: How does the sentence end?

Answering questions in class came easy to Angela but not Carrie because

[A]: Carrie never finished the classroom assignments.

[Q]: How does the sentence end?

The teacher was sympathetic towards Joel but not Leslie because

[A]:
Joel was well-prepared for the exam.