词形变换：
1. Her________（decide） to give up English made us very surprised.
2. The teacher told us time________（wait） for no man.
3. Never go out in the________（hot） of the day without a hat.
4. Although he is thin, he is a man of great________（strong）。
5. We could see the________（happy） on his face after he heard the bad news.
6. If you don’t have enough________（sleep）， you will feel________（sleep）。
7. I coloured the card blue________（bring） you success.
8. You can describe the moods of people by________（look） at the colours they choose to wear.
9. A true friend can help you get out of________（sad） when you’re unhappy.
10. I saw her grandfather________（jog） in the playground just now.
11. He________（prefer） English to Chinese last term.
12. Do you have any________（difficult） doing it?
13. David has all the________（quality） a good monitor should have.
14. When I see the sun, I have the feeling of________（warm）。
15. The woman is________（content） with what her son has done.
16. We all hope to live in a________（peace） world.
17. Nobody except David and Millie________（be） in the classroom this time yesterday.
18. She changes people’s moods________（use） colours.
19. If you feel________（stress）， try to be________（relax）。
20. Is there anybody in the ________（fit） room?