1-5 ACCBA    6-10BACBC  11-15 ACBAB

16-20 CAACB       21.Growing   22. who

23. unless       24.importance       25. and

26. to do 27.by     28. healthy

29. cheapest    30. has saved

31. ... I have worn ...                have→ had

32. ... send it to ...                 it→ them

33. ... though I noticed ...     though → when

34. ... walk slowly.             walk → walking或walked

35. ... but I ran ...                 but→ so / and

36. ... went to downstairs ...        去掉to

37. ... caught up him.               up后加with

38. ... the sweet smile ...              the → a

39. ... was so moving ...      moving→ moved

40. ... in tear.                            tear→ tears