单词拼写。

1. I have no idea of the ________ (平均) size of classes in the UK.

2. Great changes have taken place in our country ________ (近来).

3. Good ________ (准备) should be made before we have the important meeting.

4. Don't feel e_________ about being different from others.

5. I would p________ playing outdoors to watching TV at home.

6. ________ (注意力集中) more on your work or you will be fired.

7. I found it difficult to keep my b________ on the icy road.

8. She performed the most c________ task without a mistake.

9. I'm learning German, but I still can't speak it p________.

10. Children should be encouraged to be i________ thinkers.