mary ( ) to wait in the room from teno'clock, but nobody came
来源:百度知道 编辑:UC知道 时间:2024/06/29 01:30:42
A began B had begun 答案是A, 为什么B不可以?
从10点起 是过去某个时间,而不是时间段。
如果是from ten to 12 从10点到12点
就应该选B
如果是since ten 说明是从10点到现在
也应该选B
但现在题目里用的是from,过去某个时间点,不是时间段。用一般过去
应该是过去的动作已完成,而且没有确定的结果,所以用一般过去式,而不用过去完成时。
如果要选B的话那么后面应该是since ten o`clock
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