Choose the correct preposition. 16. they bring their children carefully. a) about b) over c) up 17. hurry up or you`ll be late the plane. a) at b) for c) about 18. he looked his lost watch everywhere but didn`t find it. a) after b) at c) for 19. the children were watching their favourite programme tv. a) on b) at c) in 20. i haven`t written the exercise yet but i`m sure i`ll finish it a minute. a) for b) in c) at

16. they bring up their children carefully. 17. hurry up or you`ll be late for the plane. 18. he looked for his lost watch everywhere but didn`t find it. 19. the children were watching their favourite programme  on tv. 20. i haven`t written the exercise yet, but i'm sure i'll finish it in a minute 16. они тщательно воспитывают своих детей.17. поторопись или опоздаешь на самолет.18. он везде искал свои утерянные часы везде, но не нашел их.19. дети смотрели свои любимые программы по телевизору.20. я еще не написал , но я уверен, что я закончу его через минуту

16. they bring brought their children carefully. 17. hurry up or you`ll be late for the plane. 18. he looked for his lost watch everywhere but didn`t find it. 19. the children were watching their favourite programme  on tv. 20. i haven`t written the exercise yet, but i'm sure i'll finish it in a minute.

1. modern optical devices give (pres simp  - to give) our scientists an opportunity to look into the mystery of the microstructure. 2. the researchers conducted (past simp - to conduct) their experiments in the tropics. 3. scientists will be (fut simp - to be) able to predict what effects deforestation will have (fut simp - to have) on the climate and air quality. 4. the use of the laser in biological and medical applications is rapidly expanding (pres cont - to expand) . 5. tomorrow we’ll be discussing (fut cont  - to discuss) the alternatives to natural protein. 1. современные оптические устройства нашим ученым возможность заглянуть в тайну микроструктуры.2. исследователи провели эксперименты в тропиках.3. ученые смогут предсказать, к каким последствиям обезлесение на качество климата и воздуха.4. использование лазера в биологических и медицинских приложениях быстро расширяется.5. завтра мы обсудим альтернативы натуральному белку.

1. i went to the 2. i was going to the 3. i was going to the cinema 4. i was doing my homework the whole 5. i was doing my homework 6. i did my 7. i was doing my homework from 8. i was doing my homework 9. i did not play the piano yesterday. i wrote a letter to my friend. 10. i was not playing the piano at four o'clock yesterday. i was reading a book. 11. he was not sleeping when father came home. he was doing his homework. 12. when we were in the country last summer, i went to the wood one day. in the wood i found a liitle fox cub. i brought it home. i decided to tame the cub. every day i was feeding it and taking  care of it. i was taming it the whole summer. now the fox cub is quite tame. it  lives in my house. 13. when i was going to school the day before yesterday, i met mike and pete. they were talking and laughing. they told me a funny story. soon i laughed, too. i was still laughing when we came to school. after school i told this story at home. my father and mother liked it very much.