Here are the answers to the task:
- Linda enjoys (1) chatting with her friends on the telephone.
- Paul didn't want to (2) hurt me. He was very sorry.
- The boys in my class (3) quarrel well with the girls.
- I can't (4) trust Mike. I think he (5) always tell the truth.
- Sue often (6) bullies with her little brother.
The extra verb is get on.