Problem: How does the sentence end?

Using brushes to paint with was less exciting to the artist than using sponges. The
Answer: brushes made for more generic art.

Problem: How does the sentence end?

The waist was hoisted up by a belt instead of a string, since the
Answer: string was thinner.

Problem: How does the sentence end?

Rebecca is good with numbers, Laura is not so
Answer: Laura didn't choose a career in accounting.

Problem: How does the sentence end?

Mark's new ladder he purchased would not fit in his old shed, the
Answer:
shed was too narrow.