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Study the information from the file about have to, be to and need carefully, then do the exercises.

Ex.10. Very often we don't like things about which we have no choice - things we have to do - but we like things we don't have to do or can do if we want. Complete these sentences with the correct form of have to, don't have to or can.

15. I...........get up really early. I hate it!

16. I...........work at weekends if I don't want to. It's optional.

17. I...........deal with some very rude people sometimes.

18. I...........go to lots of boring meetings.

19. I...........deal with a lot of complaints.

20. I...........go on lots of interesting courses if I want to.

21. I...........work nights. It depends if I feel like it or not.

22. I...........wear what I like to work. Nobody minds.

23. I...........do much paperwork. Thank goodness!

24. I...........start and finish when I like. It's really flexible.

Ex.71.Group the examples according to the meaning of the "be + infinitive" construction: (1) expressing a previously arranged plan (2) expressing instructions or commands:

1. I am to see him tomorrow. 2. What am I to do now? 3. You are not to communicate with anybody. 4. She said that I was not to leave the house. 5. She is to return tomorrow. 6. He said that Tom was to apologize. 7. He inquired when the secretary was to come. 8. She says I am not to lay the table before twelve o'clock. 9. At what time am I to come? 10. Something must have happened. He was to have come at eight. 11. Jim reminded me that we were to be at the station not later than seven. 12. Which of you is to bring the magazines and newspapers?

Ex.73.Fill in the blanks with must, have to, be to or need:

1. You ... not (to bring) your books to class tomorrow, we are going to listen to a wireless programme. 2. I'm glad the lessons will begin later now. The children won't... (to get up) so early. 3. You ... not (to learn) the poem. You ... only (to read) it. 4. Children ... not (to play) with matches. 5. It was late, and they ...(to light) a fire to cook their supper. 6. You ... (to give) it back to me before you go. 7. You ... not (to be) late for the concert. 8.1 made a few mistakes, so I... (to do) the whole exercise again. 9. I... hardly (to say) how important it is. 10. She ... (to be married) next month. 11. You... not (to miss) that film, it is extraordinarily good. 12. You ... not (to strike) a match; I can see well enough. 13. Jim ... (to make) a speech at the meeting, but he had fallen ill, so Tom ... (to speak) instead. 14. You ... not (to bring) any food with you tomorrow. I'll have enough for both of us. 15. We ... (to be) there at 12 sharp. 16. We ... not (to wait) long. A bus came almost at once. 17. You ... (to learn) the whole poem.

Ex.74.Translate the sentences into English, using must, have to, be to or need:

1. Зря мы вышли из дому так рано, поезда не будет в течение часа. 2. Мы можем не спешить. Нам не нужно быть там раньше 8.30. 3. Вы не должны следовать их примеру. Это было бы глупо с вашей стороны. 4. Интересно, надо ли приносить с собой учебники? 5. Мне не пришлось запирать дверь, кто-то уже запер ее. 6. «Если завтра будет сильный мороз, — сказала мать, — тебе можно будет не ходить в школу». 7. Вам незачем беспокоиться, они скоро вернутся. Наверное, задержались на набережной Темзы у здания Парламента. 8. Спроси старосту, кто сегодня должен принести наушники на урок фонетики. 9. Вчера мы должны были навестить Аню в больнице и поэтому не могли зайти к тебе.10. Они должны были встретиться на мосту Ватерлоо в 6 пополудни. 11. Что мне рассказать нашим гостям о поездке в Лондон? — Опиши им церемонию караула у ворот лондонского Тауэра. 12. Она сказала, в какое время мы должны были прийти, и попросила не опаздывать. 13. Мы решили, что дети не должны идти туда одни. 14. Нет нужды упоминать, что Кремль — выдающийся музей и памятник старины. Это всем известно. 15. Мне пришлось принять это приглашение, хотя я очень неважно себя чувствовал. Я не хотел обидеть своих новых друзей. 16. Он знал, что ему, возможно, придется прожить там больше месяца.