Bob called to tell his mother that he couldn’t enter the house, for he ________ his key at school. A...
2022-11-08 00:39:11 43次 2014-2015学年山东聊城莘县第一中学高一上第三次月考英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Bob called to tell his mother that he couldn’t enter the house, for he ________ his key at school.
A. had left B. would leave
C. was leaving D. has left
本题链接：
