补全对话（每空一词）
A:Excuse me, 　　is the way to the Children’s Hospital?
B:　　,I don’t know.You’d 　　ask that policeman.
A:Excuse me, 　　can I get to the Children’s Hospital?
C:Oh,go along Huanghe Street,and 　　the second turning on your left.Then 　　No.3 bus and 　　off 　　the third stop.You’ll see a white building 　　the post office and the police station.You 　　 miss it.
A:Thank you very much.
C:You are welcome.