三.題組題組A
In Lucy’s room on Saturday morning)
Mrs. Wu: Lucy, it’s already ten o’clock. You’ve played computer games for more than two hours, 　28　? Besides, you have to finish your science report this week, don’t you?
Lucy: But I’m 　29　 right now. Please let me play for another thirty minutes.
Mrs. Wu: No way! Get up and get started with your work.　
Lucy : I don’t know how to do my report. What should I do?
Mrs. Wu: Why don’t you surf the Internet 　30　? To live is 　31　.　
Lucy: All right, Mom. I’ll give it a try. Before that, let me drink something. I’m so thirsty.
【題組】28.
(A)haven’t you　
(B)don’t you　
(C)haven’t I　
(D)do I