根据句意及提示写词。

1. Her face was _______ (严肃的) as they told us the bad new.

2. We have to _______ (喊叫) because there are too much noise.

3. It's not _______ (安全的) to go out at night.

4. She spoke loudly in order to be h_______ clearly.

5. She was a v_______ of a road accident.

采用独立悬架的车桥通常为断开式。