Problem: How does the sentence end?

The marine used the polish from the jars to shine his boots for inspection until the
Answer: boots were shiny.

Problem: How does the sentence end?

I always write letters on my computer not on paper as it is difficult to edit them if I use the
Answer: paper .

Problem: How does the sentence end?

Amy was installing Carrie's new water heater for
Answer: Carrie forgot how to put them together.

Problem: How does the sentence end?

The professional admired Aaron and disdained William, because
Answer:
Aaron consistently showed great promise on the project.