问题描述：
Are you all students?提问,怎么回答,yes,we...No...we 2,the eve if Spring Festival 前用On
为什么
are you all students?Yes,...
选择A，we are all,B we all are C we aren't all D all aren't
为什么
are you all students?Yes,...
选择A，we are all,B we all are C we aren't all D all aren't
问题解答：
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