4. Maybe it would be better to ...

3. In my opinion, you should [ had better wait another ten minute.

2. What/How about going out for a swim this Sunday afte- rnoon?

1. Why not have another try?

20. a world ____ 无数……，大量……，许多……

☆交际用语☆

19. dance ____ music / a song / a tune 按音乐／歌曲／曲调的节拍跳舞

18. have... ____ mind想到；想着

17. ____ magic tricks 看魔术

16. ____... with / to 和……作比较

15. ____ sb badly 虐待某人