1. Most people (leave)                    before the volcano (erupt)                   .

2. By the time we (arrive)                    at the canyon, it (stop)                   snowing.

3. They (spend)                   the night in the flooded area before help (arrive)                   .

4. Simon (get)                    lost because he (not take)                   a map with him.

5. I (find)                   my pen after I (buy)                    a new one.

Chuyển thành câu bị động

1. Volunteers have given out food and blankets to homeless people.

 _____________________________

2. So far, rescue workers have freed ten people trapped in collapsed buildings.

_____________________________

3. Did the storm destroy the whole village?

_____________________________

4. If the storm hits the area, it will cause a lot of damage.

_____________________________

5. They are going to organise a garden party to raise money for the victims of the flood.

____________________________