Dear Tom
I am very happy to receive your letter. I am fine these days but a bit busy. I am always busy with my study and there are lots of homework to do every day. I work hard and I am interested in all the subjects so I can alwasy get good grades. I often do sports for about twenty minutes after school because it's good for my health and it can help me relax. I am going to take an important exam so that I can get into senior high. So I will try as hard as I can. How about you?
Yours
Lily