1.  The common reasons for parent - teenager problems are: A teenager is getting bad grades at school, a teen is hanging out with a bad crowd, a parent who is very strict with their teenager will probably have problems with him at some point.

Dẫn chứng: Dòng 4,10,14,15

2. The effects of bad grades of a teen at school can cause a problem because the parents of a teen who is not getting the best grades in school will be worried about him graduating from high school and getting into college. Also, if a teen gets bad grades, he probably will not get any scholarships for school, which canbe  hardship on parents.

Dẫn chứng: Đoạn 2

3. Because a teenager who has friends that o things their parents  do not approve of can end up doing those things too, and the teen's friends will probably not be received well by the parents.

Dẫn chứng: Đoạn 3

4. A teenager wants to rebel when a parent who is very strict with their teenager will probably have problems with him at some point.

Dẫn chứng: Đoạn 4 

5. The way to fix the problems between parents and their teens is to communicate his or her feelings.

Dẫn chứng: Đoạn 6 

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