A.Take the escalator upstairs,and turn left. B.Take the escalator upstairs,and turn right. C.Those are dangerous articles.You are not allowed to take them on board D.I want to recharge my IC card.
A.That’s three yuan. B.It’s over there. C.Thank you. D.You are welcome.
A.Yes,you will. B.Sorry,it’s not valid on subwaytrains. C.Yes,I can. D.Sorry,I don’t know.