Andy: Excuse me, where's classroom 3C?
Mr Smith: Walk along the science lab and turn left. Go past the
staffroom and walk down the corridor. Go past the nurse's
office and turn right. Then go up the stairs.
Andy: I'm
you repeat
the last bit, please?
Mr Smith: Of course. Go up the stairs. Go down the corridor.
Classroom 3C is on your right.
Andy: Thank you.
Mr Smith: You're welcome.​