2．If I _____taking drugs，I ______ a successful businessman now．"said the dying heroin addict．（　　）
A．didn't start；am
B．haven't started； have been
C．shouldn't start，would have been
D．hadn't started； would be

分析 "要是我當(dāng)初沒有開始吸毒，我現(xiàn)在會是一個成功的商人"這個垂死的吸海洛因成癮的人說．

解答 答案是D．本題考查錯綜時間的虛擬條件句；根據(jù)句意，從句是與過去事實相反的虛擬條件句，從句中用過去完成時；主句中的Now說明主句是與現(xiàn)在事實相反的結(jié)果，主句中用"would/should/could/might+do"，由此判斷答案是D．

點評 在掌握虛擬語氣的規(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)語境，選用恰當(dāng)?shù)膭釉~形式表達虛擬．

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