单选题
______ the result, I would not have asked you to tell me.
A、
If I know
B、
Had I known
C、
I had known
D、
If I knew
【正确答案】
B
【答案解析】
[解析] 此题考查虚拟语气倒装句的用法。从主句谓语形式可知其为对过去的虚拟,从句应为与之形式一致的虚拟语气,即用过去完成时,省略if时应用倒装。
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