A:Excuse me , driver , you have kept us waiting for 15 minutes . Can't we start the tour right now ? B: I am sorry , sir , there are still 5 minutes remaining ... OK , it's time . We will take a roll call before starting the fantasy sightseeing . A: Finally . How long does the tour last ? B: For <MASK> . Enjoy your trip .
about 3 hours about 5 minutes about 15 days