Problem: How does the sentence end?

Most roses grow well in the summer but not in the winter because in the 
Answer: summer it is very hot.

Problem: How does the sentence end?

Bob preferred to use pills rather than therapy to treat his tendinitis because it hard to do the 
Answer: therapy .

Problem: How does the sentence end?

He tried to cut the slate with a knife but it didn't work because the 
Answer: slate was so thick.

Problem: How does the sentence end?

Kevin has to leave the house earlier in the morning than Matthew because it takes 
Answer:
Matthew less time to get to work.