Problem: How does the sentence end?

Sue poured the walnuts out of the bag onto the table until the 
Answer: bag was empty.

Problem: How does the sentence end?

Amy was good at dancing while Elena was not very good at it because 
Answer: Elena had poor rhythm.

Problem: How does the sentence end?

Kevin asked Leslie if there is a thrift store near the city centre, because 
Answer: Kevin wasn't sure.

Problem: How does the sentence end?

Donald ended the relationship against the wishes of Adam, because 
Answer:
Donald wanted to be alone.