Problem: How does the sentence end?

I'd prefer the sponge cake to the devil's food cake since the
Answer: devil's food cake is too heavy.

Problem: How does the sentence end?

Amy was a seamstress and Cynthia needed her curtains hemmed so,
Answer: Amy charged to hem them.

Problem: How does the sentence end?

The toddler was grumpy in the afternoon but not the evening because the
Answer: afternoon was hot.

Problem: How does the sentence end?

Dennis received a lot more benefits at his work that Leslie because
Answer:
Leslie had a poor job.