If I_the answer, I_you. But alas, I myself have no idea at all.

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问题 If I_____the answer, I_____you. But alas, I myself have no idea at all.

选项 A、know; will tell
B、have known; will have told
C、knew; told
D、knew; would tell

答案D

解析语法类试题(虚拟假设)。if引导的是一个假设情况，同事实相反，因此使用了过去式，第二个空则需要使用情态动词。故选D。

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专业英语四级

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