3. 　　　　　　your study if you want to catch up with the class.

2. 　　　　　　the polluted air, the old lady always wear a mask over her face.

defend against/protect against/concentrate on/devote oneself to/get all the facts straight

1. We’re well prepared to 　　　　　any surprise attack.

10. The busy mother feels really 　　　　　(内疚的) at forgetting her daughter?s birthday again.

9. Some smoking and alcoholic drinks are an 　　　　　(获得的) taste and are not bornwith.

8. An 　　　　　(精确的) instrument is able to give you information that is correct to a detailed level.

7. The little boy cried　　　　 (故意地) to draw his mother’s attention.

6. He had to rewrite his essay, because his teacher said it needed some (润饰) in language.

5. Industrial development is being 　　　　　(集中) in the west of China.

4. Your o　　 is your job.