A:Excuse me, could you tell me how to get to the drug store?
B:Sure. Go two blocks and turn right. It's on your left.
A:I'm glad it isn't too far.
B:It's within a few minutes' walk.[???]
A:Where is Tim?
B:He hasn't come yet.
A:I wonder what's keeping him.
A:How are you doing today?
A:Aren't you tired after the long trip?
B:No, not at all.
A:Will show me your passport, please?
B:Here you are.
A:What's the purpose of your visit?