86. Поставьте глаголы, данные в скобках, во времена группы Simple (Present, Past, Future):

1. Albert Einstein (to be) born in 1879 in Germany. When he was 12, he (to begin) his study of mathematics and physics. Later he (to continue) his studies at the University. 2. Einstein (to present) his theory of relativity in 1905. His famous equation (to say) that energy (to equal) mass times the square of the speed of light. The great discovery (to surprise) the scientists of the world. 3. The people of our country (to produce) a lot of geniuses such as Lomonosov, Mendeleyev, Lobachevsky and others. Now our country (to have) a great number of brilliant scientists in all fields of knowledge. 4. Your experiment (not to give) good results until you (to change) the speed of the reaction. 5. Any square (to have) four right angles.

87. Откройте скобки, поставив глаголы в форму Simple (Present, Past, Future):

1. He (know) several foreign languages. 2. Our grandparents (live) now in Moscow. 3. Usually the train (leave) at 10 o'clock. 4. I (learn) English at school. 5. He (visit) them regularly last year. 6. As a rule I (go) to my Academy by bus. 7. She (work) abroad next year. 8. She (not like) poems. 9. Your children usually (ask) many questions. 10. At present he (work) at school. 11. My brother (like) music. 12. What you (do) yesterday? 13. His sister (go) to the seaside next July. 14. Soon we (leave) the school. 15. Who (take) his book yesterday?

Придаточные предложения условия

88. Прочитайте и переведите предложения, обращая внимание на использование Present или Future Simple:

1. If anything happens, we shall give you a call. 2. We shall have lunch, when we get hungry. 3. She will leave as soon as her brother comes back. 4. He will finish the work before we return. 5. You will go out for a walk after you do your homework for tomorrow. 6. We shall practice spoken English, while they stay with us. 7. If he wins the competition, it will be wonderful. 8. In this restaurant they'll serve you the moment you come. 9. If you buy this dress, you'll regret it. 10. He will work at a foreign company after he graduates. 11. You won't achieve much unless you work hard. 12. I shan't go to bed before I know that you are all right. 13. He will sing one song after another till he is exhausted. 14. We shall go skating tomorrow, unless it rains.

89. Прочитайте предложения и поставьте глаголы, данные в скобках, в нужную форму Present или Future Simple:

1. If you (to make) a mistake, they will find you. If they (to find) you they will catch you. — If they (to catch) me, I shall confess. — If you (to confess) they will put you into prison. If you (to be) lucky, they won't catch you. 2. If you (to go) to Rome, you'll see the Coliseum. If you (to visit) London, probably you'll see the Queen. If you (to stay) with me you won't see anything, but I'll be happy. 3. When he (to propose) to her, she'll marry him. But she won't be happy when she (to marry) him. 4. I shall visit you as soon as I (to feel) better. 5. We shall stay here as long as our money (to last). 6. They won't send us a telegram unless there (to be) something urgent. 7. You'll phone me before you (to go) away, won't you? 8. I'll come to London after they (to find) some place for us to stay at. 9. Students won't get financial rewards unless they (to get) high grades. 10. We'll work till it (to get) absolutely dark. 11. What will you do when summer (to come)? 12. If he not (to come) we'll have a problem.