49.　 He lives in a tall building in the city of Toronto.

48.　 All the six students do as the teacher says.

47.　 The other students in the class keep their eyes closed.

46.　 They pass the coin from one student to another--first one way, then another.

45.　 I think you need a number 16 bus.

44.　 You’d better catch a bus.

43.　 It’s about a hundred metres along on the right/left

42.　 And take the forth turning on the left.=Turn left at the forth turning.

41.　 Excuse me, is there a post office near here?

40.　 He is asking a policeman for help.