Sarah has some problems in her English study. She tries her best, but she is still poor at English. She doesn't know what to do.

John has trouble in falling asleep at night. He can't go to sleep though he is tired. This makes him tired and nervous.

Tim likes eating junk food very much, such as hamburgers. As a result, he becomes fatter and fatter.

Grace is very sad because she has a quarrel with her best friend. She doesn't know whether they can be good friends again.

Tina is a shy girl. She is afraid of speaking in public. She becomes nervous when she speaks in front of other people. She doesn't know what to do.

A. I think a good talk with your friend is necessary for you. If it is you who make the mistake, you should say "sorry" to her. Communication is the best way to solve the problem.

B. Practice makes perfect. If you want to learn English well, you should practice more. Watching English movies is helpful. And you can remember English words before sleeping or after getting up.

C. You should drink much more water. You'd better have a day off and have a good rest. If necessary, a doctor can help you.

D. Don't get too excited before going to bed. You can drink a glass of milk but not coffee. If it doesn't work, you'd better go to see a doctor.

E. You'd better have a good plan for your study. Make a good schedule according to all the subjects that you learn. Listen to the teachers carefully when you are having lessons.

F. You should pay more attention to your eating habits. You shouldn't eat much junk food. Instead, you should eat more fruit and vegetables. Doing exercise every day can also help you.

G. You should be more self-confident. Try to join some clubs, take part in some parties, and make more friends. I'm sure you will not be so nervous as before.