It is imperative that the students ______ writing their papers by the end of the month.

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问题 It is imperative that the students ______ writing their papers by the end of the month.

选项 A、finish
B、must finish
C、will finish
D、are to finish

答案A

解析 句意:学生必须在月底以前做完论文。该题考查的是虚拟语气。imperative的意思是"必要的,强制的"。当表示建议,指令,愿望,个人意见或判断,要求,构成It is...that...结构时,主语从句要用虚拟语气,动词形式为"should+动词原形"或只用动词原形。
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