№1 choose the correct answer. 1. you drink in the classroom. a) must b) mustn’t c) have to d) don’t have to 2. you listen to the teacher. a) must b) mustn’t c) can d) can’t 3. it is hot! you open the window, please ? a) must b) can c) might d) can’t 4. a: is tom at home? b: i am not sure… he go to the shop. a) must b) can c) might d) have to 5. what household chores do you do at home? a) must b) can c) might d) have to