The news reporters hurried to the airport, only _____ the film stars had left.

问题描述:

The news reporters hurried to the airport, only _____ the film stars had left.
A. to tell B. to be told C. tellingD. told
答案为什么是B,请讲解

新闻记者匆忙赶到机场 结果只被告知电影明星已经走了
to be told 被告知
A 是只为了去说电影明星已经走了
C 正在说
D 句式不对 已经有谓语了