[Q]: How does the sentence end?

Dennis showed endless dedication to the unappreciative Ian, so

[A]: Ian leeched all their energy selfishly.

[Q]: How does the sentence end?

Donald didn't like to keep clean the way Matthew did, so

[A]: Donald tended to smell nasty.

[Q]: How does the sentence end?

Dennis built a greenhouse for Eric because

[A]:
Eric was unhandy with tools and building materials.