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The maths teacher demanded that all the students _____ the examination paper within one and a half hours.
A.finish  B.finishedC.would finish  D.could finish
A

试题分析:考查虚拟语气:句意:数学老师要求所有的学生在一个半小时内完成试卷。当主句的谓语动词是demand“要求”的时候,从句的谓语用虚拟语气,即“sb (should) do,这句话的从句的谓语省略should,用动词原形finish。选A。
点评:英语中有4——四个表示“要求”的词,require, ask ,tell, demand;3——三个表示“建议”的词,suggest, recommend, advice;2——两个表示“命令”的词,order,command ; 1——一个表示“坚持”的词,insist。他们后面接 should+动词原形 的虚拟语气。Should可以省略。
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