present 用法Persons ________the concert were famous musicians.A.wer_英语解答

present 用法
Persons ________the concert were famous musicians.
A.were present at.B.who are present at.C.present in.D.present at.

人气：444 ℃　时间：2020-05-27 07:22:47

解答

D为什么？？求详细解释！划线处应为who were present at，缩略为present at，省略复合句