问题
选择题
The people in this country went through a period in their life________they had no freedom to use the
cellphone.[ ]
A. where
B. when
C. what
D. that
答案
答案：B
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The people in this country went through a period in their life________they had no freedom to use the
cellphone.[ ]
A. where
B. when
C. what
D. that
答案：B