第一節(jié)1—5 CCBBB 第二節(jié)1—5 BABCA
    第三節(jié) 1—5 CBBAC 第四節(jié) 1—5 CEDBA
    21—25 CBCBD 26—30 CCCDA 31—35 BDCDA 36—40 CADBC
    41. helps
    42. swimming
    43.eats
    44.kilometers
    45. make
    46. be
    47. am playing
    48.easily
    49. criminals
    50. strawberries
    51. washing
    52.interesting
    53. waiting
    54. message
    55. candles
    56. went
    57. ride
    58. took
    59. expensive
    60. stayed