13. These animals have got used to living on the 　　　　　(高原).

12. Just speak 　　　　　(自然地) in front of the camera.

11. A 　　　　　(神秘的) object was seen flying over the hill last night.

10. New 　　　　　(目击) show that a monster exists in the lake.

9. Two men were caught while crossing the 　　　　　(国境) illegally.

8. The book mainly deals with the life of the last Chinese 　　　　　(皇帝).

7. I am not 　　　　　(怀疑的) about his ability to do the job well.

6. Remember to take your 　　　　　(身份) card when going on a trip.

5. It’s 　　　　　(慷慨的) of him to often help those in need.

4. My hometown, a small village, is located in a 　　　　　(山谷).