1. She... to send a telegram because it was too late to send a letter. 2. They decided that she... to send them a telegram every tenth day. 3. You... to learn all the new words for the next lesson. 4. Do you know this man? He... to be our new teacher of English. 5. Who... to go to the library to get new books? — I was, but I couldn't because I... to finish some work at the phonetic laboratory. 6. It is raining. You. to put on your raincoat. 7. "The patient … to stay in bed for a few days", ordered the doctor. 8. The child had a stomach trouble and... to take castor oil. 9. I told her she... to open the window for a while every day. 10. The agreement was that if Johnny White could not repay the money he had borrowed, then Luke Flint... to have the right to sell the land. 11. If I don't ring up before six o'clock, then you... to go to the concert hall alone and wait for me at the entrance. Is that clear? 12. The planters … to gather their cotton at once, as they had been warned that heavy rains were expected. 13. I... to wear glasses as my eyesight is very weak. 14. Johnny White... to borrow from Luke Flint at high interest, for there was no one else in the district who lent money. 15. "Cheating is a very nasty thing", said the teacher, "and we... to get rid of it".
Ex. 7. Translate into English; using must, to be, to have, needn’t or should.
1. Я должен был все спланировать заранее. 2. Мы, должно быть, пропустили его. Мы должны были прийти пораньше. 3. Ей надо было сделать вид, что она его не знает. 4. Она должна была выгладить это платье до того, как оно высохло; теперь ей придется смочить его снова. 5. Мы не должны были устраивать скандал на глазах у детей. 6. Это должно было случиться. Он такой забывчивый. 7. Этого следовало ожидать, и нечего удивляться. 8. Мне не пришлось ничего ей объяснять. 9. Ты не должен принимать все так близко к сердцу. 10. Вы не должны грызть ногти. Это отвратительная привычка, и нужно от нее избавиться. 11. Мы договорились встретиться в парке у памятника Пушкину. 12. Она, очевидно, была очень приятной женщиной. Все говорят о ней с такой любовью. 13. С какой стати я буду делать то, что я не должна.
Ex. 8. Give the proper English equivalents for the Russian expressions.
1. Нам пришлось perform the operation of addition to find the answer. 2. Ему предстоит specify the conditions of the experiment. 3. Им разрешают use a dictionary if necessary. 4. Я в состоянии solve this difficult problem myself. 5. Вам следует remember that multiplication is associative. 6. Ей не надо use this theorem. 7. Они могут apply their theories in practice. 8. Вы обязаны remember several rules about division. 9. Можно мне start the calculations now? 10. Вам следует to accept everything your parents say as an axiom.
Ex. 9. Fill in the blanks with should, need, have to with the appropriate form of the Infinitive:
1. I... (to prepare) for my coming exam yesterday, but I... (to look after) my sick sister. 2. He... not (to get up) early. He begins working at 9.30. 3. "I... (to say) those wounding words," he reproached himself. 4. It isn't the sort of thing one... (to discuss) with unknown people. 5. You... not (to worry) about money. I've got enough for both of us. 6. You... not (to walk) all the way to the station. You... (to take) a bus round the corner. 7. Sooner or later one... (to choose). 8. Mother... (to get up and down) a good bit during the meal, fetching things back and forward. 9. I managed to get there at half past twelve. But I... not (to hurry). They had already left. 10. Breakfast is often a quick meal, because the father of the family... (to get) away to his work, children... (to go) to school, and the mother has her housework to do. 11. If you are interested in historic places you... (to go) to Westminster Abbey. 12. She drew a chair near his — he wondered if he... (to help) her with the chair — and sat down beside him. 13. They... (to knock) twice before the door was opened. 14. She... (not to give) money to her boy. Then it wouldn't have happened. 15. She... (to conceal) her real feelings lest anyone... (to notice) how unhappy she was. 16. You... (not to come) yourself. You may send somebody else.
