Thismathproblemisverydifficult．Nobodyinourclasscan______．A.workonitB.wo

发布时间：2020-08-06 20:51:53

This math problem is very difficult．Nobody in our class can ______．A.work on itB.work out itC.work it onD.work it out

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D解析work out为固定词组，意思为“解答出”．代词it放在中间．
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