6. You needn’t work today. ________ you are ill, you may have a rest at home.

5. The Sun is very important to the mankind. Man ________ it for heat and light.

4. He was unhappy at first but soon ________ after lunch.

3. We must try to ________ the new telephone system before we use it so that we may use it freely.

2. Before ordering rooms for them, you’d better make sure how many people will be ________ at the meeting.

in time, prevent… from, depend on, cheer up, now that, break out

cool down, get the hang of, spread, presence, explode, exist

1. The coffee is ________, so you’d better drink it right now, or it will be too cold for you.

15. It is the third time that his novel was p________ in this company.

14. Li Bai was one of the greatest poets, while Zhang Heng was one of the most famous Chinese a________ in the world.

13. The waste gas from the factory is h________ to our health.

12. Knowing that he failed to pass the exam, he felt very d________ and unhappy.