So absorbed in the experiment that he didn’t even notice it was already over 12 o’clock. A．did he B．...
2022-12-16 13:46:51 44次 2012-2013学年甘肃省高三第五次诊断考试英语卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
So absorbed in the
experiment that he didn’t even notice it was already over 12 o’clock.
A．did he B．he did C．was he D．he was
本题链接：
