用方框内所给词或短语的适当形式填空

1. Last Monday he was walking along the street. Just then a traffic accident ________.

2. Don't ________ the car before it stops.

3. When she saw an alien sitting in the UFO, she ________.

4. When the storm began, I ________.

5. My mother ________ when the alien went into her shop.

依据《国务院办公厅关于加强安全生产监管执法的通知》，应培育扶持（）参与安全生产工作，积极提供安全管理和技术服务。

A.行业协会

B.高等院校

C.注册安全工程师事务所

D.科研院所