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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

试题分析:句意:我不知道他是否会回来。如果他来了,我给你打电话。第一空 用于宾语从句中whether or not……表示是否……..。第二空,引导条件状语从句用连词if引导,并用一般现在时表示一般将来时。故选A。
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