he said that ____(study)with a group helped a lot这里是填studied 还是studying?为什么?

he said that ____(study)with a group helped a lot这里是填studied 还是studying?为什么?
he said that ____(study)with a group helped a lot这里是填studied 还是studying?为什么?

he said that ____(study)with a group helped a lot这里是填studied 还是studying?为什么?
studying;因为这里需要填写的词在宾语从句中做主语,这是动名词做主语

studying
动名词短语作helped的主语，
他说组成一个小组学英语很有用

填studying

that引到一个宾语从句，主语要用动名词形式


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studying
动名词 动词作名词

studying

He said 后面that 引导的是宾语从句。
helped 是从句中的谓语动词，所以主语是 Studying with a group 用动名词
如： Running is good for our boby.
答案： studying
祝学习愉快！