We cannot figure out ______ quite a number of students were infected with the flu. A．that B．when C．w...
2023-01-26 12:31:02 122次 2010年河南省周口市高二上学期期中考试英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
We cannot figure out ______ quite a number
of students were infected with the flu.
|
A．that
|
B．when
|
C．why
|
D．where
|
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