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【题目】I’m not sure_____________ he is right. __________ he is right, I will follow him.

A.when, ifB.whether, whetherC.if, whetherD.whether, if

【答案】D

【解析】

句意:我不确定他是否是对的。如果他是对的,我会听他的。

考查连词。根据句意,第一个空翻译为是否,可选ifwhether,排除A;第二个空翻译为如果,选if,排除BC。故选D

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