Problem: How does the sentence end?

Kayla asked Tanya what kind of diet she was on, because 
Answer: Kayla wanted to lose some weight.

Problem: How does the sentence end?

The oil change was less expensive than the tire rotation, so the 
Answer: tire rotation was probably tougher for the mechanic.

Problem: How does the sentence end?

The lady's vacuum worked a lot better on the carpet than the broom, because the 
Answer: broom was useless.

Problem: How does the sentence end?

His wife was violent, with destruction of his house and clothing. The 
Answer:
house had been burnt down.