It is high time that everyone()very hard for the coming national college en-trance examinationwould studystudiedstudystudies

It is high time that everyone()very hard for the coming national college en-trance examinationwould studystudiedstudystudies
It is high time that everyone()very hard for the coming national college en-trance examination
would study
studied
study
studies

It is high time that everyone()very hard for the coming national college en-trance examinationwould studystudiedstudystudies
studied
原因：it is high time that +从句
从句中的谓语动词要么用过去式,要么用should+动词原形,should不可省略

studied,
It is high time that+从句
该是...的时候了．从句后要用虚拟语气 动词过去式或者should do．
如: It is high time that we got home.是我们该回家的时候了．
　It is high time that we went/should go to bed. 是我们...

全部展开

studied,
It is high time that+从句
该是...的时候了．从句后要用虚拟语气 动词过去式或者should do．
如: It is high time that we got home.是我们该回家的时候了．
　It is high time that we went/should go to bed. 是我们该睡觉的时候了．
望采纳，谢谢！

收起