根据对话内容与上下文，在空白处填入适当的句子，使对话意思完整。
A: Excuse me. ______________________________________________________(1)?
B: Certainly. Go along this street and turn left at the first crossing. The museum is next to the post office.
A: ________________________________________________________________(2)?
B: It's about thirty minutes' walk.
A: I see. ___________________________________________________________(3)?
B: Yes, you can. The No.9 bus will take you there.
A: By the way, _____________________________________________________ (4)?
B: Over there. Look! The bus is coming.
A: Thank you very much.
B: ___________________________________________________(5).