30. A. fly B. race C. swim D. sing
29. A. ask B. lead C. want D. allow
28. A. increased B. improved C. rose D. grew
27. A. But B. Also C. Thus D. Still
26. A. family B. lake C. home D. world
25. A. ago B. out C. later D. long
24. A. placed B. protected C. treated D. examined
23. A. helped B. decided C. afforded D. meant
22. A. realized B. expected C. imagined D admitted
21. A. managed B. attempted C. happened D. supposed