单词拼写。

1. —You like the new house, why not buy it?

    — It's really expensive.I can't a_______ it.

2. In the modern world, it's n_______ for us to learn English well.

3. The boy has tried to make his mother pay more a_______ to him.

4. Mr. Green has got his driver's l_______. He can drive a car.

5. — Do you know who d             America?

    — Columbus (哥伦布).

6. We all regard that_______ (友谊) is the most important in the world.

7. You should be _______ (有耐心的) to wait for him.

8. His idea often _______ (影响) his decisions.

9. If Lucy is given a chance, she will _______. (成功)

10. We must know the ______ (重要) of learning English.

某同学将六种生物依据某一标准进行分类，你认为他进行分类的依据是类群：（　　）

1 蜗牛  海葵   昆虫     2 眼镜蛇  青蛙   麻雀．

A．体温是否恒定

B．有无脊柱

C．呼吸方式的不同

D．生殖方式的不同