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it has been announced that we shall have our final exam next month这个是什么句型?是it引导的形式主

分类: 作业答案 • 2021-12-20 03:03:43

问题描述：

it has been announced that we shall have our final exam next month这个是什么句型?是it引导的形式主

答

这是一个由that 引导的主语从句后置情况