[Q]: How does the sentence end?

William asked Joseph to help him get rid of the gray in his hair because

[A]: William didn't know how to do it.

[Q]: How does the sentence end?

So

[A]: Monica was quite confident about the exam that's coming because Samantha forgot to study and Monica didn't.

[Q]: How does the sentence end?

Hunter had to pay Donald an immigration bond because

[A]:
Donald was an ICE officer who detains those without proper documentation.