I don’t know _____ or not he will come . _______ he comes , I will call you .
A．whether ; IfB．whether ; WhetherC．if ; IfD．if ; Whether
A

試題分析：句意：我不知道他是否會回來。如果他來了，我給你打電話。第一空 用于賓語從句中whether or not……表示是否……..。第二空，引導(dǎo)條件狀語從句用連詞if引導(dǎo)，并用一般現(xiàn)在時表示一般將來時。故選A。
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