摘要： Mom.I volunteer my time the dirty clothes.
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—Mom, can I leave my homework for tomorrow?
—I’m afraid not. Don’t _________ what you can do today till tomorrow.
A. put on B. put down C. put up D. put off
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— Mom, must I finish my homework now?
— No, you ______. You may have supper first.
A. mustn’t B. needn’t C. can’t
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— Mom, must I finish my homework now?
— No, you ______. You may have supper first.
A. mustn’t B. needn’t C. can’t
查看习题详情和答案>>