Over 20% of the students at that school _____ the habit of smoking, which is beyond imagination.
A.isB.a(chǎn)reC.hasD.have
D

試題分析:考察主謂一致。本題的主語(yǔ)是20% of the students,屬于分?jǐn)?shù),百分?jǐn)?shù)。分?jǐn)?shù),百分?jǐn)?shù)做句子主語(yǔ)的時(shí)候,后面的謂語(yǔ)動(dòng)詞的單復(fù)數(shù)形式要看分?jǐn)?shù)百分?jǐn)?shù)后面的名詞,如果后面的名詞是可數(shù)名詞復(fù)數(shù)形式,那么謂語(yǔ)動(dòng)詞就使用復(fù)數(shù)形式。如果后面的名詞是不可數(shù)名詞或者可數(shù)名詞單數(shù),那么謂語(yǔ)動(dòng)詞就使用單數(shù)形式。本題20% 后面是可數(shù)名詞復(fù)數(shù)形式students,故使用復(fù)數(shù)形式。句意:那所學(xué)校里超過(guò)百分之20的學(xué)生有抽煙的習(xí)慣,這是難以想象的。根據(jù)句意說(shuō)明使用have,表示有…的習(xí)慣。故D正確。
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