What surprised me a lot was that he didn't know ________ the difference between "say"

题目简介

What surprised me a lot was that he didn't know ________ the difference between "say"

题目详情

What surprised me a lot was that he didn't know ________ the difference between "say" and "speak" lay.
[    ]
A. what  
B. that
C. where  
D. which
题型:单选题难度:中档来源:同步题

答案

C

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