第二部分：英语知识运用（共两节，满分45分）
第一节 单项填空（共15小题；每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的正确答案，并在答题纸上将该项涂黑。
21. ----Did you happen to see ____ black and ____ white cat?
----Is she missing? I told you to take care of her.
A. the; the B. the; / C. a; / D. a; the
22. Of the two, I would prefer ____ camera, which is very easy for me to carry.
A. a small B. a smaller C. the small D. the smaller
