Problem: How does the sentence end?

Betty only ate animal products in a very strict way while Carrie ate steak every day. 
Answer: Carrie is a meat-eater.

Problem: How does the sentence end?

The plant was harder to take care of than the tree because the 
Answer: plant needed more attention.

Problem: How does the sentence end?

William was greeting the mayor in Spanish during the event unlike Kevin because 
Answer: William traveled to Mexico.

Problem: How does the sentence end?

The work at the school was tedious but the other job as a mechanic would not be a good idea. Therefore the 
Answer:
mechanic job was null.