Problem: How does the sentence end?

Mary poured the entire bottle of cleaning soap into the sink until the 
Answer: sink was full.

Problem: How does the sentence end?

Buying a large tank was necessary for Craig but not Kenneth because 
Answer: Kenneth has small fish.

Problem: How does the sentence end?

The backhoe failed to remove the boulder but the bulldozer could, as the 
Answer: bulldozer was correctly equipped for the job.

Problem: How does the sentence end?

The students preferred to watch horror movies over drama movies because the 
Answer:
horror were more ominous.