Unit 3 Celebration
Lesson 2 Parties同步辅导与测试
练习
从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。
1. Mike, you ______ play with fire. You______ burn yourself.
A. won’t; can’t B. mustn’t; may
C. don’t have to; must D. have got to; shouldn’t
2. You ______ see the doctor, Joe. You don’t look very well.
A. must B. shall C. may D. can
3. —Must I clean the window now?
—No, you ______.
A. mustn’t B. needn’t C. can’t D. may not
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