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最佳选项，并在答题卡上将该项涂黑。
21. —If you are interested , I’ll bring you the book tomorrow .
— . It couldn’t be better .
A. No problem B. Thank you C. That’s night D. Don’t mention it
22. Father went to his doctor for about his heart trouble .
A. an advice B. advice C. advices D. the advice
