题目内容：

请根据句意或汉语提示,用所缺单词或短语的适当形式填空。每空一次

1.My mother is a ___________(退休) teacher, and she enjoys her life now.

2.A reptile has cold blood and ________(产卵) eggs.

3.It is _________(polite) to stare at others in public places.

4.The crocodile is very dangerous but we can’t harm it, because it belongs to the ___________(danger) species and is facing up to dying out and needs protection.

5.The technology has been ________(simple) so that anyone can use it.

6.Now the population of the birds is _____ ______ _______.（增长）

7.One of her acquaintances was going through a very messy divorce and was very depressed. She tried to ________ her ______(使……振作起来).

8. The initials, WWF, _____ _____(代表) World Wide Fund for Nature.

9.If you show you _____ _____ _____ (意识到) cultural differences, most Americans will

not worry about answering your questions.

10.____ _____ ____ (……的数量) the pandas living in the wild has increased to about 1,590.