5. This is a 　　　　　(科学的) research.

4. All the people 　　　　　(在场的) at the meeting knew this thing.

3. C　　　　　 　with the sun, the moon is very cold.

2. I’m sorry to d　　　　　 　you.　 May I use your dictionary?

1. You shouldn’t be c　　　　　 　about the things that you shouldn’t know.

15. In some countries,　　　 　is called “equality” does not really mean equal rights for all people.

A. which　　　 　B. what　　　　　 C. that　　 D. one

14. In front of the four witnesses, the thief had to admit 　　　　　the car.

A. to steal　　　　　　　　 B. to have stolen

C. stealing　　　　　　　　 D. of stealing

13.　　　 　life pace continues to speed up, we are quickly losing the art of enjoyment.

A. With　　　　 B. When　　　　 C. As　　　　　 D. While