-.1-4 CABA 5-9 CRCAC 10-12 BCA 13-15 CBB 916-20BADCA 21-25 CBDBD三、26-30 DBCAB31-35CAD四、3640 CBCDD41-45 CBDAC五、46-50 FCDAG六、51. such as52. all over the world 53. train tickets 54. travel plans 55. singing; songs七56. Sunday(aftemoon)57. seven/7 58. one hand 59. some candy 60. the boy,61. busy 62. weckends 63. happy 64. visit 65. dear 66. when 67. time 68. minute 69. first 70. day