It is recommended that the race _C until all the prepara

来源：学生作业帮编辑：搜狗做题网作业帮分类：英语作业时间：2024/06/25 21:00:56

It is recommended that the race ___C__ until all the preparations have been made.
A.is not started B.will not be started C.not be started D.is not to be started
请高手讲下以下4个答案,为什么要选C,A不可以吗.麻烦给讲的详细点,我将感激不尽!

a不可以,因为这句型是it is recommended that sth (should) be done

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