The student was to ____[A.explain B.have explained]why he was lat_英语解答

The student was to ____[A.explain B.have explained]why he was late,but the teacher didn't allowed him.

人气：419 ℃　时间：2020-05-20 22:12:43

解答

A
前后时态一致.
事情发生在过去某一时刻,根据句子意思没有强调动作已经完成的含义.他想去解释,但是没有成功,have explained 表示已经解释,实际上已经被制止了,故用explain保持过去式