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【题目】A survey carried out last year showed that 80% of the middle-aged in this city ____________ in favour of the proposal on health care reform.

A.isB.areC.wasD.were

【答案】D

【解析】

考查动词时态和主谓一致。句意:去年进行的一项调查显示,该市80%的中年人赞成医疗改革的建议。通过分析句子结构并翻译语境可知,主句时态为一般过去时,根据时态一致性可知从句中时态也为一般过去时,且从句中主语80% of the middle-aged是复数,按照主谓一致原则,因此使用be动词were。故选D项。

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