If we          a full preparation, the meeting wouldn't have been so successful．
A．haven't madeB．wouldn't make
C．didn't makeD．hadn’t made
D 

試題分析：考查虛擬語氣：句意：如果我沒有充分準(zhǔn)備，會(huì)議就不會(huì)這么成功。動(dòng)作是和過去相反，if條件句用過去完成時(shí)，主句是wouldn’t have done。選D。
點(diǎn)評：本題所考查的if非真實(shí)條件句的虛擬語氣，要記住和不同的時(shí)間相反的情況，主從句的時(shí)態(tài)不一樣，做題時(shí)要結(jié)合具體時(shí)間判斷。
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