求解答过程：I don't know _______
Idon'tknow_______hewillcomeornottomorrow._______hecomes,Iwilltellyou.[]A.if,WhetherB....
I don't know _______ he will come or not tomorrow. _______ he comes, I will tell you. [ ]
A. if, Whether B. whether, Whether C. if, If D. whether, If 展开
A. if, Whether B. whether, Whether C. if, If D. whether, If 展开
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