【题目】用must和mustn’t填空。
1. You _____ wait for the green light.
2. You______ play on the street.
3. You _____ pick flowers.
4. You _____take good care of young children.
【答案】1. must 2. mustn’t 3. mustn’t 4. must
【解析】
略
【题目】用must和mustn’t填空。
1. You _____ wait for the green light.
2. You______ play on the street.
3. You _____ pick flowers.
4. You _____take good care of young children.
【答案】1. must 2. mustn’t 3. mustn’t 4. must
【解析】
略
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