8. Avoid asking p　　　　 　questions when talking with foreigners.

7. We import lots of a　　　　 　products from abroad, like rice and wheat.

6. Miss Brown needs a job to s　　　　 　herself.

5. A large q　　　　 　of waste water used to be put into the river.

4. B　　　　 　is the scientific study of plants and their structure.

3. Take this medicine and such symptoms will d　　　　 　in a minute.

2. The flood caused serious d　　　　 　to the village and many houses were washed away.

Ⅱ. Fill in the blanks with correct words.

1. The police s　　　　 　the house and the drug dealers had no way to escape.

15. Their aim is to 　　　　　(开发) ocean resources.

14. Some of my office 　　　　　(同事) come from Britain.