14．If we ______ day before yesterday，we would have done the job．（　　）
A．hadn't been interruptedB．weren't being interrupted
C．wouldn't be interruptedD．weren't interrupted

分析 如果前天我們沒(méi)有被打斷，我們就會(huì)完成那份工作了．

解答 答案是A．本題考虛擬條件句．主句中用"would/should/could/might+have done"，說(shuō)明是與過(guò)去事實(shí)相反的虛擬；與過(guò)去事實(shí)相反的虛擬條件句中往往用過(guò)去完成時(shí)，由此判斷答案是A．

點(diǎn)評(píng) 在掌握虛擬語(yǔ)氣的規(guī)則的基礎(chǔ)上，判斷題干屬于什么類型的虛擬，然后根據(jù)語(yǔ)境，選用恰當(dāng)?shù)膭?dòng)詞形式表達(dá)虛擬．

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