Use: have to / don't have to / needn't / mustn't / must 1. We must keep the room tidy. 2. You buy tomatoes, we have lots of them. 3. You speak louder, I can hear quite well. 4. Students be late for the lesson. 5. You must do the homework on time.

Ответ: 1. must, 2. don't have to, 3. needn't, 4. mustn't, 5. must

1. We must keep the room tidy. (Мы должны содержать комнату в чистоте.)
2. You don't have to buy tomatoes, we have lots of them. (Тебе не нужно покупать помидоры, у нас их много.)
3. You needn't speak louder, I can hear quite well. (Тебе не нужно говорить громче, я хорошо слышу.)
4. Students mustn't be late for the lesson. (Студентам нельзя опаздывать на урок.)
5. You must do the homework on time. (Ты должен делать домашнее задание вовремя.)

Ответ: 1. must, 2. don't have to, 3. needn't, 4. mustn't, 5. must