[Q]: How does the sentence end?

Laura was caught smoking in Christines house even after

[A]: Christine made it clear nobody was not supposed to.

[Q]: How does the sentence end?

Late on Monday, Christine was doing an excel report for Erin because

[A]: Christine was the employee.

[Q]: How does the sentence end?

During the concert, Leslie signed Justin's shirt with a pen since

[A]:
Leslie was a singer.