So absorbed _____ in the experiment that he didn’t even notice it was already over 12 o’clock. A．did...
2022-12-19 00:25:25 50次 2012-2013学年重庆市高三第三次（5月）月考英语试卷（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：
