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介词后跟的时间是时间段还是时间点

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/11/05 16:23:29
介词后跟的时间是时间段还是时间点
in,after,for后跟时间点还是时间段?用于什么时态
in+ 一段时间,常与一般将来时连用.
after +时间点,与一将来时连用; after+ 一段时间,与一般过去时连用.
for + 一段时间,多与现在完成时连用.如
He will come back in two days.
She will come home after two o'clock .
After a while ,he went out without saying a word.
He has studied at this scholl for two years.
加油!不明白再问!