I feel very happy that I( )to be the host.

问题描述:

I feel very happy that I( )to be the host.
A .choose B.am chosen C.was chosen D.have chosen

选C
host这里应该是“主持人”.
原句:我很高兴我被选为了主持人.
被选上是过去发生的事,所以应该选过去时的被动语态.
所以选C