第 1 页 必修三 Unit 2 Grammar 教学设计 一、复习练习： can may shall should would must 1. I _________ keep my balance when I learn to ride a bike. 2. You _______ pay attention to your diet. You are too fat. 3. We ________ keep quiet in the library. 4. Tom doesn't come to school today. He _______ get ill. 5. He promised that he _______ get good grades next time. 6. If you steal things again, you ________ be