why didn't you go to the movie yesterday?because i(had )seen it before.為什么不能用have
why didn't you go to the movie yesterday?because i(had )seen it before.為什么不能用have
英語(yǔ)人氣：281 ℃時(shí)間：2019-08-20 05:52:48
優(yōu)質(zhì)解答
如果用have,have seen是現(xiàn)在完成時(shí),現(xiàn)在完成時(shí)表示動(dòng)作從過(guò)去一直持續(xù)到現(xiàn)在,一般與since連用較多.比如：It is five years since he left.自從他走了（到現(xiàn)在為止）已經(jīng)5年了.用had是過(guò)去完成時(shí),一般在這樣的題中都...
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