21．The moment we heard the news of the earthquake, we began to ________ the work to rescue those who were trapped in the building.
| A．set off | B．set down | C．set aside | D．set about |
Walking around, I found the city was full of people__________ for the festival.
| A．wearing | B．had new clothes on |
| C．dressing up | D．dressed up |
We hadn’t planned to meet. We met ________ chance.
| A．of | B．in | C．for | D．by |
-----How do you like the plan? ------______.
| A．It’s better | B．I like it very much |
| C．It’s well | D．Not at all |
We should try our best to ______ those people after the disaster.
| A．break out | B．cheer on | C．break up | D．cheer up |
The happy news quickly ______ through the whole village.
| A．was spread | B．were spreading |
| C．spread | D．had been spread |