28. A.well B.alive C.silent D.alone
27. A. recognized B. wondered C. heard D. asked
26. A. days B. weeks C. months D. years
25. A. cheat B. tell C. remind D. warn
24. A. energy B. chance C. courage D. time
23. A. killed B. lost C. gone D. changed
22. A. talking about B. looking after C. pointing out D. helping with
21. A. visitors B. relatives C. patients D. doctors
19. Peter was so excited ____ he received an invitation from his friend to visit the 2010 Shanghai Expo.
A. where B. that C. why D. when