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英语问题59. Tom has been most helpful to us; in fact I don’t kno

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英语问题
59. Tom has been most helpful to us; in fact I don’t know what we ______ without him. A. have done B. will have done C. had done D. would have done
英语问题59. Tom has been most helpful to us; in fact I don’t kno
正解是D
句意汤姆一直对我们很有帮助,事实上我不知道没有他我们当时会怎么样
宾语从句中有without him 表示与实际情况相反,所以要用虚拟语气,表示与过去事实相反的虚拟用would have done .