用英语的适当形式填空（最好说明原因）
问题描述：
用英语的适当形式填空（最好说明原因）
Upon arrival,the singer ________(surround )by a lot of fans and reporters.
答
was surrounded
Upon arrival 一到达,
the singer was surrounded by a lot of fans and reporters （歌手被歌迷和记者围住）为什么是was 不是is根据语境，是对过去发生的事情的描述