距离2019年12月大学英语四级考试还有不到40天时间,考生们准备得怎么样啦?文都四六级小编为大家精心准备了2019年12月英语四级语法:since的四种用法,来了解一下吧,更多四级语法、六级语法请关注文都四六级网站。
英语四级语法:since的四种用法
1) since +过去一个时间点 (如具体的年、月、日期、钟点、1980, last month, half past six)。
I have been here since 1989.
2) since +一段时间+ ago
I have been here since five months ago.
3) since +从句
Great changes have taken place since you left.
Considerable time has elapsed since we have been here.
4) It is +一段时间+ since从句
It is two years since I became a postgraduate student.
以上就是这次分享的2019年12月英语四级语法:since的四种用法,不知道大家都掌握了吗?更多四级语法、六级语法请持续关注文都四六级网站。
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