22. (1)_______________，_______________，_______________

(2)____________　　 (3)___________

21．___________，___________

20.(1)______，__________， ___________(2)_________

19．(1)___________(2)___________(3)_____________

18.

13. _________，_________　 14.________，_____________

12.___________________，_________________　　　

10. ________，_______　　　 11._________，________　　

8._________，_______　　　 9. _______，_________，________