根据对话内容，在每个空白处填入一个适当的单词，使对话完整，合乎情景。

A：Excuse me, can I (1)________your bike? 　　

B：(2)__________ , I don't have one. Ask Yu Yan. I think he has (3)____________. 　　

A：OK. Thanks a (4)________________. Yu Yan, do you (5)____________a bike? 　　

C：Yes, I do. (6) _________it's only an old one. 　　

A：That's OK.(7) ____________I borrow it, please? 　　

C．Certainly. But please (8) _______it back soon. 　　

A：OK. Thanks(9) _______much.　　

C：(10)________at all.