第二部分 英语知识运用(共两节，满分35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最佳选项。
21. —Do remember to charge the battery for 12 hours when you first use it.
— .
A. Thank you, I remember. B. What for？
C. Up to you. D. Got it
22. —This is book I introduced to your student yesterday.
—I see. Isn’t it interesting one?
A. a; the B. a; an C. the ; an D. the ; a
