Circle the correct words. 1 Do you have to/can you study a lot? Yes, I could/have to study every night. 2 Must/Can I keep food in the tent? No, you don't have to / mustn't. It's not allowed. 3 I have a terrible headache. I think you can/should take an aspirin. 4 Do I have to/Can I go out with my friends tonight? Yes, but you mustn't/don't have to come home very late. 5 You shouldn't/can't throw those bottles away! Oh! You're right we don't have to / should recycle them. 6 Can/Must I watch that film tonight, Mum? Yes, you should/can. 7 What should/could I take to the party tonight? You have to/should take a box of chocolates.​