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been a Manchester United supporter for as long as I can remember. ? How long have you known each other? ? 注意 :當(dāng)時(shí)間狀語(yǔ)不明確時(shí) , 仍然用現(xiàn)在完成時(shí) . ? So far this year, there have been a number of exciting new developments. ? His girlfriend has phoned about six times today. ? 或者該動(dòng)作 (雖然發(fā)生在過(guò)去 )對(duì)現(xiàn)在有一定影響時(shí) ,也用現(xiàn)在完成時(shí) . ? I have been to Italy several times. ? (I know about Italy now.) ? The book has sold over a million copies. ? (so it is very successful.) Time phrases with the Present Perfect ? Present time periods: ? today, this year, this week ? Adverbs whose meaning links the past and the present: ? for and since, already, just, recently, ever, never ? Times adverbs meaning times: ? Twice, three times, several times Sentence patterns with present perfect simple ? This is /It is the first , the secon