Question

_________ 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

Answer 1

B

试题分析：考查虚拟语气的倒装：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。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 提前置于句首答案B。
点评：在虚拟语气条件句中从句谓语动词有were, had, should等词，可将if 省略，把 were, had, should 移到主语之前，采取部分倒装。但注意not不能倒装，还有如果had是实意动词也不能倒装。