Bob called to tell his mother that he couldn’t enter the house, for he ________ his key at school. A...
2022-12-13 13:25:26 87次 2013年全国普通高等学校招生统一考试英语（上海卷解析版） 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
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