一、选择填空（共15小题，每小题1分，满分15分）
1. —Lily, there is _________ schoolbag near the window. Is it yours?
—Yes, it is. Thank you!
A. a B. an C. the D. 不填
2. Li Yuchun is my favourite singer. I once met her _________ 2012 in Hunan.
A. to B. on C. at D. in
3. —Please don’t throw paper on the ground.
—_________, I won’t.
A. Excuse me B. That’s all right C. Sorry D. It doesn’t matter.
