题目内容
用 must, oughtn't to, don't have to, mustn't, needn't或 have to填空。
1. You _____ go on working because you look so tired now.
2. The weather turned out to be fine yesterday. I ______ have had the trouble to carry my umbrella
with me.
3. If you earn more than ~5,000, you _____ pay tax.
4. You ______ play now ! You shall finish your homework first!
5. You can't give up. You ______ try to get over the difficulties.
2. The weather turned out to be fine yesterday. I ______ have had the trouble to carry my umbrella
with me.
3. If you earn more than ~5,000, you _____ pay tax.
4. You ______ play now ! You shall finish your homework first!
5. You can't give up. You ______ try to get over the difficulties.
1. oughtn't to/don't have to 2. needn't 3. have to 4. mustn't 5. must/have to
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