I am so hurried as to knock into my teacher.

我如此匆忙以至于撞到老师身上。

I was so hurried as to knock into my teacher.

我如此匆忙以至于撞到老师身上。

If you knock into someone, you should say sorry to him.

如果你撞在某人身上，你应该对他说声“对不起”。

He didn't expect to knock into some of his friends here.

他没有想到在这儿遇见了一些朋友。

He didn't expect to knock into some of his friends here.

他没有想到在这儿遇见一些朋友。