9. My grandpa often practices        (play)Ta? Chi by the river.

8. I can't understand        (speak) English sometimes.

7. You'd better find a pen pal if you don't get much       (write) practice.

6. Please tell me how to       (pronunciation) the word.

5. I'm very glad that my boss has i       my wages.

3. You can j      an English club to improve your English.

1. Bob was very surprised to make five       in his homework.

2. Don't drive at a very high       It's dangerous.

20. 当今社会终身学习非常重要。
            is very important in modern world.

19. 不管你是否告诉他们，他们都会查明真相的。

They'll find out the truth,              you tell it to them.