1. C
come on表催促或鼓励.
2. B
offer to do sth 主动提出做某事
3. Burington is no larger than a large village. Its streets (weren't meant) for heavy traffic when they were built.
4. On New Year's Eve we may hear fireworks (exploding) here and there.
5. This English program is designed to (satisfy) the needs of the beginners of English.
6. The earth was different because of the (appearance) of small plants growing in the water on its surface.
这道题没有把握!
7. With the (development) of science and technology, people are living a better and better life now.
8. Explorers have been sent to the Mars to make sure whether life (exists) on it.
9. The river is so polluted that every day we can see a lot of things (floating) on the water.
10. Why,Helen? I phoned you this morning, but no one answered it.
I must (have been) asleep and didn't hear it.
11. His parents died when he was very young, so he (was brought) up by his grandma.
12. 虽然有表演的天赋,但他还是以教书为生.
Although he (has a gift for) performing,he earns his living by teaching.
13. 他感到振奋并很快安定下来专心工作了.
He cheered up and quickly (got down) to work.