情景交际。    

A: Excuse me.      1      the post office?    

B: Go down this street and turn right at the second crossing. Go up the road to the end, you'll find it.    

A:      2   ?  

B: It's about 500 meters away from here.    

A: Oh, that's quite a long way.    

B: Yes, __ 3      take a bus.    

A:     4     ?    

B: You can take the No.7 bus. It'll take you there.    

A:     5    ?    

B: It takes about fifteen minutes.    

A: Thanks very much.    

B: My pleasure.