1 Circle the correct answer. 1 A: Were you able to / Could you finish your work, yesterday? B: No, I wasn't because I must / had to go to my aunt's for dinner. 2 A: Ought / Shall I make you a cup of tea? B: Yes, please. Could you / Are you able to make me a sandwich, too? 3 A: I can't / may open this jar. Ought / Could you do it for me? B: Sure. Here you are. 4 A: Now, remember, children. You don't have to / mustn't touch the paintings in the gallery. B: How about / Are we allowed to take photos, miss? 5 A: Do we have / Could we use your computer, Ms Holmes? B: I'm sorry. I'm using it myself. You may / need to use the computer in the next office, though. 6 A: Do we have to / need go out? It's raining! B: Well, I have to / can go to the supermarket but you aren't allowed to / needn't come with me.