Exercise 5. Complete the sentences choosing the right word in brackets.

1. You (must, have to) come and have a game of tennis with my son. You will be impressed.

2. The buses were full and we (must, had to) take a taxi.

3. I understand. You (mustn’t, don’t have to) translate.

4. You (must, have to) look both ways before crossing the road.

5. We’ll book a room for you. You (mustn’t, don’t have to) look for a hotel.

6. We’re going by an early flight, so I (must, have to) get up not later than six o’clock tomorrow morning.

7. You (mustn’t, don’t have to) drive so fast, there’s a speed limit here.

8. You (mustn’t, don’t have to) drive so fast, we’ve still got a lot of time.

9. ‘I’m sorry I (must, have to) put off our appointment again. I’ve still got a temperature.’ ‘That’s all right. You (must, have to) stay at home till you fell well enough to go out. Get well! ’

Exercise 6. Fill in the blanks with be to or have to (in it’s correct form).

1. Hurry up! The bus... arrive at two o’clock. If you are late, you... walk home.

2. We … take exams in four subjects in spring.

3. After his father’s death Robert … support his family.

4. The train … have arrived by 7 o’clock. But it hasn’t come yet.

5. The book.… be published at the end of the last year.

6. If you want to pass the exams successfully you … work hard.

7. When you have a computer, you won’t... waste so much time.

8. I felt nervous because I... leave home for the first time.

9. I think we... pay in advance.

Exercise 7. Say what should have been done.

Model: Jane was ill, but didn’t stay at home.

Jane should have stayed at home.

1. He didn’t leave a message.

2. We didn’t congratulate him.

3. The company didn’t finance the construction.

4. They didn’t replace the defective part in the machine.

5. They didn’t introduce the changes gradually.

6. They didn’t improve the design.

7. The tickets haven’t been exchanged.

8. The seats haven’t been booked.

Exercise 8. Translate into English using ought to / shoul, be to/ have to.

1) Вам надо бы проконсультироваться с кем-нибудь еще. 2) Вам надо бы поискать другую работу. 3) Нам пришлось изменить свои планы на лето.

4) Вам не нужно торопиться, вступительные экзамены в аспирантуру состоятся в октябре. 5) Вам следовало быть внимательнее к родителям. 6) Вам надо бы подать заявление до 30 июня. 7) Вам давно надо было со мной поговорить. 8) Премьер-министр должен посетить Шотландию в сентябре. 9) Билеты надо было заказать заблаговременно. 10) Вам следует помогать своим близким.11) Президент должен завтра сделать заявление. 12) Эти документы должны быть подписаны директором. 13) Вы очень хорошо говорите по-английски. 14) Вам приходилось много работать над языком в университете?

Exercise 9. Choose the best form.

1) Most primitive tools and devices … independently by different civilizations (had to be invented/must have been invented).

2) If there was some­one to put a question there … somebody, sooner or later, to answer it (must have been/ must be).

3) By that time the resources of the planet … (must be exhausted /may have been exhausted).

4) A scientist … freely choose his line of rese­arch (may/has to).

5) They ……the sample in freezer; it would be more effective (can put/might have put).

6) At all the times there were ideas which should have been given more attention than they actually were.

7) You absolutely..... go and see this film. It’s really worth seeing (should, must).

8) Good ideas ……be written down before they are forgotten (have to/ should).