i am the one of boys who XX(am,is)

问题描述:

i am the one of boys who XX(am,is)
如题,用am还是is

用 is 是正确的.
看例句:
My friends all admire me,but I am the one who is actually admiring them.
朋友们都羡慕我,其实羡慕他们的人是我.
正解,为什么楼下都说是am?主语是the one