I'm not sure ______ he is right. ______ he is right, I will follow him. [ ]A. when, IfB. whethe

题目简介

I'm not sure ______ he is right. ______ he is right, I will follow him. [ ]A. when, IfB. whethe

题目详情

I'm not sure ______ he is right. ______ he is right, I will follow him.

[     ]

A. when, If
B. whether, Whether
C. if, Whether
D. whether, If
题型:单选题难度:中档来源:模拟题

答案

D

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