请教曹老师：

It wasn’t well-paid work but people felt valued, which is often more important. Also there was a relaxed atmosphere around the company. The moment the merger was announced, that kind of evaporated. It seemed to become tense, people wondering if the new CEO was going to live up to his reputation for wielding the axe.

The moment引导时间状语从句，如果that kind of evaporated作主语，为什么少了谓语动词，同样的 people wondering也少了谓语动词？