[Q]: How does the sentence end?

Jumping in the water was never a problem for Jeffrey but it was for Derrick, because

[A]: Derrick took boxing lessons as a child.

[Q]: How does the sentence end?

Bob the engineer was fixing the mechanical system and needed more bolts but not screws because the

[A]: bolts were coming off.

[Q]: How does the sentence end?

Rebecca left the sunroof open in the car while Mary always closed it.

[A]:
Mary was anxious of getting mold and mildew in the seats.