9. Explorers have been sent to Mars to make sure whether life ________ on it.

8. If birds want to fly, they have to ________ their wings and wave them up and down.

7. The First World War ________ in 1914 and ended in 1918.

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.

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

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

V、请从下面方框中选择适当的单词或短语，并用其正确形式填空。(12%)