how long since i bumped into you and your sister at McDonald?选项:A is it B was it C had it been D has it been it is +加一段时间 since 与 it has +加一段时间 since 不是意思一样吗?我很混,请问此题该作何解?
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![how long since i bumped into you and your sister at McDonald?选项:A is it B was it C had it been D has it been it is +加一段时间 since 与 it has +加一段时间 since 不是意思一样吗?我很混,请问此题该作何解?](/uploads/image/z/12752052-60-2.jpg?t=how+long+since+i+bumped+into+you+and+your+sister+at+McDonald%3F%E9%80%89%E9%A1%B9%EF%BC%9AA+is+it+B+was+it+C+had+it+been+D+has+it+been+it+is+%2B%E5%8A%A0%E4%B8%80%E6%AE%B5%E6%97%B6%E9%97%B4+since+%E4%B8%8E+it+has+%2B%E5%8A%A0%E4%B8%80%E6%AE%B5%E6%97%B6%E9%97%B4+since+%E4%B8%8D%E6%98%AF%E6%84%8F%E6%80%9D%E4%B8%80%E6%A0%B7%E5%90%97%3F%E6%88%91%E5%BE%88%E6%B7%B7%2C%E8%AF%B7%E9%97%AE%E6%AD%A4%E9%A2%98%E8%AF%A5%E4%BD%9C%E4%BD%95%E8%A7%A3%EF%BC%9F)
how long since i bumped into you and your sister at McDonald?选项:A is it B was it C had it been D has it been it is +加一段时间 since 与 it has +加一段时间 since 不是意思一样吗?我很混,请问此题该作何解?
how long since i bumped into you and your sister at McDonald?
选项:A is it B was it C had it been D has it been
it is +加一段时间 since 与 it has +加一段时间 since 不是意思一样吗?我很混,
请问此题该作何解?
how long since i bumped into you and your sister at McDonald?选项:A is it B was it C had it been D has it been it is +加一段时间 since 与 it has +加一段时间 since 不是意思一样吗?我很混,请问此题该作何解?
It is +一段时间+since…的句型与It has been +一段时间+since…意思相同.
前者是规范说法,后者是口语说法.
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.
It is +一段时间+since…的句型与It has been +一段时间+since…意思相同.
前者是规范说法,后者是口语说法.
It’s a long time since he studied English
他好久没学英语了.
You haven’t come to see me for two months.
你有两个月没来看我了
其实就是完成时的另一型式
不一样,it has been+段时间 since=it's +段时间(has been 是持续性动作才能加段时间,it's后可直接加段时间)