[Q]: How does the sentence end?

I started moving the lint from the dryer to the trashcan until the

[A]: dryer was empty.

[Q]: How does the sentence end?

The small brush is better than the large brush for painting the trim because the

[A]: large brush is less precise.

[Q]: How does the sentence end?

Bob poured the entire bottle of oil into his car engine until the

[A]:
bottle was empty.