I was a bit nervous before I arrived here

问题描述:

I was a bit nervous before I arrived here
怎么改句子,使句义不变

I was a bit nervous before I arrived here.
=I was a little nervous berore arriving here.亲do you know that teacher who teach us englishwho后面用什么形式who 后面的 动词用 teaches因为who 指代 that teacher ,是第三人称单数