[Q]: How does the sentence end?

Megan was a real headache for Elena, because 

[A]: Elena was always cleaning up all kinds of trouble.


[Q]: How does the sentence end?

Rachel was the designated understudy when Victoria lost their voice due to laryngitis, so 

[A]: Rachel had to decline the soprano position.


[Q]: How does the sentence end?

The girls were looking for the belt and not the hat inside of the closet because the 

[A]:
belt was lost.