介词填空。

l. I'd love to sail ____ the Pacific.

2. Here are some of the findings of a survey, ____ which thousands of students ____ China took part.

3. We received several different answers _____ the question.

4. What would you like to do _____ finishing your education?

5. Many students said they would like to work _____ interpreters or tour guides.

6. Quite a few dream _____ becoming famous.

7. Hold on _____ your dreams.

8. They'd like to be able _____ fly.

9. I can achieve that _____ working hard at school.

10. My dream is_____ become a famous person.

《中国图书馆分类法》中基本大类由22个字母表示，“C”表示的是（），“F”表示的是（）。

A、社会科学、经济

B、哲学、文学

C、文化、科技

D、经济、历史