Problem: How does the sentence end?

Robert used their camera to take a picture of Michael, because
Answer: Michael was a good subject.

Problem: How does the sentence end?

Lawrence was able to put a lot more money into savings unlike Kenneth, because the job of
Answer: Lawrence was better.

Problem: How does the sentence end?

The infestation of mites in the attic did not spread to the basement, since the
Answer: attic was so prone to infestations.

Problem: How does the sentence end?

Logan was casting the play and put Craig in the lead role, because
Answer:
Logan was a great director.