第二部分：英语知识运用(共两节，满分40分)
第一节:单项选择(共20小题；每小题1分，满分20分)
阅读下面各题，从题中所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
21. ---Look at your desk! What ________ mess! What’s that under your English book?
---Sorry, Mum. It’s ________ comic book, which I was reading before you came in.
A. a, the B. 不填, the C. a, a D. 不填, a
22. It is reported that young people in our city read five books a year________.
A. on average B. in average C. of average D. for average
