题目内容
I don't know ______ he will come tomorrow. ______ he comes, I will call you.
A. whether; Whether
B. whether; If
C. if; Whether
D. weather; If
答案:B
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题目内容
I don't know ______ he will come tomorrow. ______ he comes, I will call you.
A. whether; Whether
B. whether; If
C. if; Whether
D. weather; If