你可以說(shuō) for three years,但加上ago,就是since
時(shí)間可以分為點(diǎn)和線,加上ago,就是點(diǎn),三年前
沒(méi)有ago就是線,可以用for ,表示持續(xù)一段時(shí)間
she has't seen his family___three years ago.中為什么填since而不填before,from,for.要為什么哦!
she has't seen his family___three years ago.中為什么填since而不填before,from,for.要為什么哦!
英語(yǔ)人氣：444 ℃時(shí)間：2019-11-04 11:25:42
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