There are 45 students in our class. I have made a survey. 36 students say they like to exercise. Most boys play basketball together twice a week. But girls think basketball is difficult for them. They would like to play volleyball together twice a week. Gray is good at swimming. He goes to the swimming club three times a month in winter and three times a week in summer. So he's quite healthy. Some of my classmates have good eating habits. They eat both meat and vegetables. 70% of them drink milk every day. 10 students say they drink milk three or four times a week. But some students like to eat junk food，especially（尤其是）Sally. What's worse（更糟糕的是）,she doesn't like to exercise, so she is very fat. She always says,"I'm going to lose weight（减肥）tomorrow. "