题目内容：

根据课文内容填空。

We use“ 1. ”body language when we are introduced to strangers. Like other animals, we are on 2. until we know it is safe to relax.

At Wushan we made a 3. up the Daning River to see some of the smaller gorges.

The Chinese flag was 4. in the wind. On a 5. mountain was a sign in 20-foot 6. .

The director of a 7. tourist office, Meng Fanying, said the monster, which seemed black in colour, was ten metres from the edge of the lake during the most recent 8.．

They also think that there might be 9. creatures in other lakes around the world. Scientists, however, are 10. ．