—______? —They are studying. A. What are they doing B. Where are they C. How are they D. What do the...
2022-11-10 07:10:29 95次 人教七下Unit 7 It 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
—______? —They are studying.
A. What are they doing B. Where are they
C. How are they D. What do they do
本题链接：
