If you feel tired out and unable to think clearly, that is ____ you have to get a rest. [ ]A. why B.

题目简介

If you feel tired out and unable to think clearly, that is ____ you have to get a rest. [ ]A. why B.

题目详情

If you feel tired out and unable to think clearly, that is ____ you have to get a rest.
A. why
B. when
C. whether
D. what
题型:单选题难度:中档来源:模拟题

答案

B

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