[動詞的時態]since的四種用法
1) since 過去一個時間點(如具躰的年、月、日期、鍾點、1980, last month, half past six)。例如:
I have been here since 1989. 1989起,我一直在這兒。
2) since 一段時間 ago.例如:
I have been here since five months ago. 我在這兒,已經有五個月了。
3) since 從句。例如:
Great changes have taken place since you left. 你走後,變化可大了。
Great changes have taken place since we were here. 我們走後,變化可大了。
4) It is 一段時間 since從句。例如:
It is two years since I became a postgraduate student. 我考上研究生有兩年了。
位律師廻複
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