Problem: How does the sentence end?

I really like the way Dennis treat their friends but not Jason as 
Answer: Jason is a rude person.

Problem: How does the sentence end?

Rebecca is not rich but Mary is very much so, and so 
Answer: Rebecca goes back home to a hovel and not a mansion.

Problem: How does the sentence end?

So 
Answer: Nick tickled the baby because Nick likes babies and Matthew doesn't like them at all.

Problem: How does the sentence end?

The boy tried to put the fish tank in the closet but the 
Answer:
closet was too small.