Not only adults but also teenagers have problems in their life. Here is a survey showing the main problems of __________.

They feel stressed because they have __________ homework to do both at school and at home. They have lots of exams __________. And parents usually send them _________ different classes at weekends. As a result, so many of them almost become bookworms(书虫). On holidays, they could hardly have __________ time to do what they are interested in. Now more and more teenagers __________ short-sighted. They often read in bed or keep __________ for a long time without having a rest. Some of them are crazy about playing computer games. Some __________ too much watching TV. __________ serious problem among teenagers is that many of them are becoming fat. They eat too much junk food, but they take little exercise.

I think teenagers should think of ways on how to __________ the problem. They should make a plan for study and hobbies and find time to relax as much as possible.