1、Unit 8语法练习1. Look at that sign. You _ keep quiet in the hospital.A. can B. may C. should D. will2. “You _ come to work late again, or you will lose your job!” the boss shouted at me. A. neednt B. dont need C. had not better D. had better not3. You should _ the lab if your teacher doesnt ask you to.
2、A. not enter B. not to enter C. dont enter D. not entering4. You _ to obey the rules. A. must B. ought C. will D. should 5. You _ at home. To keep healthy, you _ more outdoor activities. A. should not stay, had better to take B. had better not stay, should take C. shouldnt to stay, had not better take D. had better not to stay, should taking二、完成句子。1.玛丽不应该找吉姆帮忙。Mary _ _ Jim for help.2. 你最好不要等他了。You _ _ _ wait for him.3. 我们应该先做什么呢?_ _e _ first?4. 我应该把书放在书架上吗?_ I _ the books on the shelf?5. 你应该认真听老师讲课。You _ _ listen to the teacher carefully in class.