参考答案
1-5 ABABC 6-10 BABAB
11-15 CBBAC 16-20 CBACA
21-25 CBDAB 26-30 DACAC
31-35 DBACC 36-40 GCFDA
41-45 ABDAC 46-50 BCDAB
51-55 DDCAC 56-60 BCBAD
61. cloned 62. to have
63. a 64. genetic
65. it 66. in
67. were 68. personality
69. was made 70. who / that
短文改错：
71. ... were caught by ... were → was
72. The day after ... after → before
73. ... had spend the night here.
spend → spent
74. ... said the goodbye to ... 去掉the
75. ... had left behind. left前加been
76. ... rung the bell ... rung → rang
77. ... no one answered them. them → it
78. ... the bedroom window opened ...
opened → open
79. ... wondering why it was ...
why → whether / if
80. ... Mrs. Crane, why ... Mrs. → Mr.
One possible version:
Dear John,
I am writing to answer your last letter. I want to clone my little dog if possible.
My dog, Beth, came to my home three years ago. On a cold winter morning, I found a little dog lying on the doormat. It seemed that it hadn't eaten anything for days. I took it inside and took good care of it. Gradually, it grows up and we become good friends. Wherever I go, it will follow me. I like it so much that I'm afraid one day it will die and leave me, so I want to clone Beth so that the cloned dog can accompany me instead of Beth.
Yours,
Li Hua
