组卷网 > 初中英语综合库 > 单词辨析 > I > if (是否)
题型:单项选择 难度:0.65 引用次数:139 题号:3627598
—Will he come?   
—I am not sure ___he will come, but I never doubt ______he will help us.
A.that, ifB.that, that
C.if, ifD.if, that

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