過(guò)去將來(lái)完成時(shí)結(jié)構(gòu):should have done , would have done
例:I believed by the end of that year an advanced version of that software would have been developed, but I was wrong.(我堅(jiān)信到那年年底為止,那個(gè)軟件的新版本將被開(kāi)發(fā)出來(lái)。但是我錯(cuò)了。)(此句為被動(dòng)語(yǔ)態(tài))
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