答案

单项选择
21-35 BACDD CBCAA ABDCC
完形填空
36-55 BADCB ADBCD BAC CB CBABD
阅读理解
56-75 BCDB CABD BDCA ABDA BDBC
写作1
I'm opposed to the same-sex education. One reason is because it's not practical to be carried out on a large scale at present. Moreover, same-sex schools could encourage inequality and unfairness between boys and girls. But most importantly, if kids can encounter the opposite sex, they will have more appreciation, understanding and sympathy for others. This will help them be more mature and open-minded and contribute to their well-being in later life.

写作2
As a faithful supporter of your website, I have enjoyed your convenient and timely service. But this time, I am writing for your help.
On Dec. 2nd I ordered a best-seller Twilight through your website. Unfortunately, quite a few pages were found missing when I read it afterwards, greatly affecting my understanding of the book.
I was wondering whether you could solve this problem in a proper way, for instance, sending me a new book, for I really love the book.
Your earliest reply will be highly appreciated. Thank you.