参考答案：

　　26-30 BBBAC 31-35 CBCBB

　　36-40 CBAAC 41-45 CBCAA

　　46-50 ACCBC 51-55 EABFC

　　56-60 BBAAA 61-65 BCBBC

　　66-70 ACCBB

　　71. famous for 72. spent, in writing 73. are liked

　　74.范文：

　　Dear grandpa and grandma,

　　How are you?

　　I’m doing well at school now. My father and mother are pleased with my marks. Of all the subjects I like maths the best. I’m also interested in English. Our summer holiday begins on the fourth of July. I want to spend the holiday with you, and my parents agree with me. Now I’m looking forward to seeing you again.

　　Mimi