(2017江苏南京)—When did the classroom have a power cut? —This morning, while we ________ a physics lesso...
2022-08-18 08:23:14 26次 人教新目标英语八年级下册Unit 5 Section B基础知识同步练习 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容:
(2017江苏南京)—When did the classroom have a power cut?
—This morning, while we ________ a physics lesson.
A.have had B.were having C.are having D.will have
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