—Do you know _____ Tom's sister is a doctor or not?—No, I don't know.[ ]A. that B. whether

题目简介

—Do you know _____ Tom's sister is a doctor or not?—No, I don't know.[ ]A. that B. whether

题目详情

—Do you know _____ Tom's sister is a doctor or not?      
—No, I don't know.       
[     ]
A. that      
B. whether      
C. where      
D. what
题型:单选题难度:中档来源:安徽省同步题

答案

B

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