Problem: How does the sentence end?

Michael was much faster at cleaning the yard than Jeffrey because
Answer: Michael was very efficient with his time.

Problem: How does the sentence end?

Rachel has more trouble doing daily chores than Elena, because
Answer: Elena successfully manages their clinical depression.

Problem: How does the sentence end?

Jessica called Angela on the phone to comfort them when
Answer: Angela got the bad news.

Problem: How does the sentence end?

Benjamin had an unhealthy liver because he drank a lot of beer while Brian drank water.
Answer:
Benjamin was an alcoholic.