A. If you don't want to lose your friend, you should talk to your friend first. Also, you may invite her to your home to have dinner.

B. If there is something wrong with your stomach, you should go to see a doctor as soon as possible and have some pills.

C. You should visit your neighbor and have a talk with him. You can tell him not to play the CDs at night.

D. You should tell your mother what you did and promise not to do it again. Your mother will forgive（原谅） you.

E. You should take good care of your sister while your parents are not at home.

F. You should do more math exercises and ask your math teacher to help you with math.

G. If you want to become strong, you should eat more food and do some sports.