根据上下文完成下列对话。
A: I want to        to       , but I can’t find my CD Walkman. Where is it, Helen?
B:        it on your desk?
A: No, it isn’t. It        there a        ago.
B: Let me       . Perhaps it’s in your school bag.
A: Yes,        you very much.
B: That’s all right.
A: And        are my CDs?
B: Look,        on the ground..
A: Oh, yes. Would you please pick        up for me?
B: All right. Here you are.