摘要：5．D 考查虚拟语气.Had I been a little more careful是If I had been a little more careful的省略倒装形式.由此可知是对过去事实的假设.所以主句谓语用wouldn’t have done.句意为:如果我再细心点.就不会犯这么愚蠢的错误了.
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Housing prices________ much higher now if the government hadn’t taken measures to control housing dealing. 【安徽省宣城市2011届高三英语试题】【虚拟语气】
A.were B. had been C. would be D. would have been
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If I you would drop in，I would have stayed home, waiting for you．【北京市师大二附中2011届高三第三次模拟考试】【虚拟语气】
A. have known B. knew C. would know D. had known
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If Rose ____ her diamond in a safer place, it ____ stolen. 【江西八校2011年高三联考】
【虚拟语气】
A. had put; might not have been B. had put; could be
C. had put; might be D. had not put; could not have been
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