I don’t know when he; when he, I’ll tell you. A. come; will comeB. will come; comesC. come

I don’t know when he ; when he , I’ll tell you.
A. come; will come
B. will come; comes
C. comes; will come
D. will come; comes

A. come; will come(答案→)B. will come; comesC. comes; will comeD. will come; comes解析：此题考查when引导的两种从句。第一空when引导宾语从句，意思是“我不知道他什么时候会来”所以用will come表将来；第二空when引导时间状语从句，符合“主将丛现”原则。所以该从句用一般现在时。

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