1. 用所给单词的正确形式填空。

1. （1） He wants to make great (invent) when he grows up.
3. （2） When she heard the news, she (sudden) laughed.
5. （3） Yuan longping is a great (science) and he works hard all the year
7. （4） Please remember (bring) your homework tomorrow.
9. （5） I have a great English teacher. He helps me (learn) English.
11. （6） Peter used to (be) shy, but now he is outgoing.
13. （7） Drinking water is useful (keep) healthy.
15. （8） We are happy (meet) you here.
17. （9） My grandfather likes (have) a cup of water before breakfast.
19. （10） May I have something (drink)? I am thirsty.