三、阅读短文内容，在空白处填入一个适当的单词或括号内单词的正确形式。
There are 45 students in our class. I ask them what they 21. (usual) do in their free time.
36 students say they like to exercise. Most boys play basketball together 22. (two) a week. But the girls think basketball is difficult for them. So they hardly ever play basketball. They'd like to take their 23. (racket) and play badminton together.
My friend, Tony, is good at running. He can run fast. He runs for thirty minutes every evening 24. he goes to bed. Another friend of 25. (I), Gray, is good at swimming. He goes to the swimming club three times a month. So he is fit.
However, my deskmate(同桌), Sally, doesn't enjoy 26. (do) exercise at all. She is a heavy girl. She always says, "I will try to do some exercise and lose some weight tomorrow." But she seldom does it. This term I always encourage her 27. (play) badminton or run with other girls. I also give her some advice. 28. example, she can use an exercise app to work out because it can show her progress. She wants to have 29. try and change herself. As we know, practice 30. (make) perfect.

21.usually 22.twice 23.rackets 24.before 25.mine 26.doing 27.to play 28.For 29.a 30.makes