30. A. pleasure B. usual C. sure D. closure 31. A. measure B. station C. option D. ocean 31. A. question B. edition C. collection D. tradition 32. A. cough B. though C. enough D. laugh 33. A. loaf B. leaf C. of D. fast 34. A. off B. of C. leave D. save 35. A. certain B. compare C. encourage D. cake 36. A. calorie B. kid C. collage D. centre 37. A. sugar B. ocean C. compose D. share 38. A. son B. sugar C. sing D. soup 39. A. volunteer B. collage C. community D. doctor 40. A. tutor B. student C. university D. discuss 41. A. chemistry B. school C. mechanic D. charity 42. A. chance B. cheerful C. schedule D. channel 43. A. cello B. kitchen C. concert D. children 44. A. taught B. what C. cod D. rock 45. A. sauce B. sport C. hot D. saw 46. A. torch B. salt C. yoghurt D. author 47. A. provide B. individual C. situation D. children 48. A. food B. cook C. good D. childhood 49. A. salt B. tablet C. jam D. pancake 50. A. spinach B. match C. hat D. fragile