that引导的宾语从句作介词的宾语时,that不可省略那为什么会有介词后不用that用which?

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/31 15:25:23

that引导的宾语从句作介词的宾语时,that不可省略那为什么会有介词后不用that用which?

请举例要不然不好回答.是这样的吗比如yesterday I informed my students of that our classroom is on the 3rd floor.或者yesterday I informed my students of which floor our classroom is on