题目内容

______ smoking, he would not have got cancer in the lung.

A. Was he given up                    B. Had he given up  

C. Did he give                           D. If he gave up

B


解析:

是因为时态前后有矛盾。由于主句谓语是would not have got,这表明是对过去事实作出的假设,所以从句谓语应该是 had given up,而不是像D项那样用一般过去时。另外,当虚拟条件句中有 had, should, were 等词时,通常可以省略 if,并将 had, should, were 提前置于句首。

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