Write an English composition about musical instruments.

I'm Wang Nan, a student of 1 middle school. I have a good friend, Jim. He is an American girl. We are all in Class Two, 8th grade. She 15 years old, one year older than me. We all study hard.

I am good at physics, but she is good at math. We often help each other with our lessons. We both like to help others. We both like sports very much.

Jim likes playing basketball, but I like playing football. She likes green, but I like red. Although we have different ways, we are good friends.