那是他第一次来参加我们学校的翻译：It was his first time to participate in our school 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

That was the first time to attend our school

It was his first time to participate in our school

That is his first time participates in our school

It was the first time he had to join in our schools

It was his first time to participate in our school