. Sam enjoys playing video games so much. But he finds that it's hard to stop playing it. He begins to worry that he has been lost in the games.

. Bob likes to put on his headphones and listen to loud music. Sometimes he can't hear what his friends say clearly. He wonders if loud music hurts his ears.

. Jenny finds it difficult to remember new English words. She would like to find some possible ways to improve her English.

. Chris is the captain of school football team. He expects to find a quick way to be as strong as his favorite football player.

. Kate has a sweet tooth. She loves eating candies and chocolate every day, but her parents tell her not to eat them.

A. You wish to change your shape, right? There isn't any magic medicine that can make it. Take more exercise, you will build up your muscle(肌肉) and body.

B. Don't play on the computer for more than half an hour before you sleep. Studies show that it is bad for the quality of your sleep.

C. Playing video games too much can cause health problems. And without enough exercise, kids can become too fat. You can do something interesting like playing basketball or chess.

D. Listening to loud music a lot can cause hearing loss, especially if headphones are used. You should turn down the music or listen to some soft music instead.

E. Listening is really helpful. When someone is sad or angry，he wants to express his feelings. At this moment, you need to listen silently until he gets calm. Then we may have a good talk with him.

F. You'd better listen to your parents. They are right. Eating too much sweet food is bad for your teeth and body. Why not eat more fruit and vegetables? They are healthier.

G. English is not difficult to learn if you put your heart in it. Try to read new words aloud, and don't forget to go over them every day.