Problem: How does the sentence end?

The boy tried lots of different medicines to cure his pimples but the 
Answer: medicines were too weak.

Problem: How does the sentence end?

Tammy used her writing software to help her write a cover letter but the 
Answer: software was too difficult.

Problem: How does the sentence end?

Craig set up traps in order to catch rats for Michael, because 
Answer: Michael needed traps from because their house was infested.

Problem: How does the sentence end?

The better blogger was voted for and Justin won over Dennis because 
Answer:
Justin was more thoughtful.