公园中央有一个喷泉，周围都是树木。

There is a fountain in the ___midst of the park, surrounded by trees.

在会议的混乱中，他依然保持着清晰的思路。

He kept a clear mind in the ___midst of the chaotic meeting.

她站在人群中间微笑着挥手。

She stood in the ___midst of the crowd, smiling and waving.