The problem is__________he has enough time.A.ifB.whetherC./ D.that-英语

题目简介

The problem is__________he has enough time.A.ifB.whetherC./ D.that-英语

题目详情

The problem is__________he has enough time.
A.ifB.whetherC./ D.that
题型:单选题难度:中档来源:不详

答案

B
whether引导表语从句,而不用if。

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