18.　 Perhaps in the future I should try not to be so polite.　

17.　 This happens to me all the time in the school library.　

16.　 I don’t like waiting in line when a shop assistant has a long telephone conversation.　

15.　 We asked some people what annoyed them. Here’s what they said.　

14.　 You ordered a hamburger with French fries but only got a hamburger.　

13.　 The pen you bought didn’t work.　

12.　 The waitress brought you the wrong food.　

11.　 The store clerk gave you the wrong size.　

10.　 Your barber gave you a terrible haircut.　

9.If you finish these tasks, we can go to a movie tonight.