Найдите ошибку

1. You don't have to come if you don't want to

2. You mustn't eat in here

3. You must turn off your mobiles before you come in

4. You mustn't talk near here

Underline the correct modal verbs: 1) Scientists don't have to/must consider the dangers of cloning. 2) People mustn't/don't have to be experts to operate a DVD player. 3) You must/mustn't switch off your computer when it is not in use.

Найди пары вопрос - ответ и перевести When must i come? Who must cook breakfast? What must he do in the evening? What mustn, t my dog do? Why must i wash the car? Your dog mustn eat this sausag. You must come at eight o, clock. The car is very dirti.

перевести текст. - What must I do now? Am I ready, Mum? - No, you are not. Not yet. Now you must go through security control. - Must I show them my passport? - No, you need not there, but you must show it to them at passport control.

Example: You must / don't have to tidy your room. It's a mess. 1 You don't have to / mustn't swim there. It's dangerous. 2 I haven't to / don't have to do my homework. It's Saturday. 3 She must / mustn't practise the piano tonight.

Подставить верную букву: 1. I ... the washing by hands because our washing-machine is broken. a) have to do b) must do c) have do d) must to do 2. I think you ... at once or I'll call the police. a) have to go b) must go c) have go (1) must to go 3.