摘要: It’s high time that we students even harder at our lessons as the national entrance examination is coming nearer. A. work B. will work C. worked D. have to work 答案 C. 解析:在It is time that ...句型结构中.从句的谓语动词要用虚拟结构.可以用一般过去时.也可以用should +动词原形.但should不可省略.

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