ответ:
1. yesterday i had to answer all these letters. 2. do we have to write a dictation today? — yes, tomorrow we begin a new lesson. 3. shall i invite anna to dinner? — yes, please. 4. did you have to stay home because the weather was bad? 5. you definitely must come and have a look at our son.— with pleasure. 6. shall i go for a walk with nick now? - no, you don't have to.
you know that he has to go to bed at three o'clock. 7. i don't like to stay up late, but sometimes i have to. 8. i'm glad i didn't have to finish this work yesterday. 9. you should visit your friend. yesterday he did not come to class. 10. why didn't you come? — i couldn't, i had to take my children to the doctor. 11. you don't need to go to the library, we have got a lot of books at home, and you may take any book you like. 12. he shouldn't wake us so early.
More than a dozen years, the entire world is fighting for the preservation of valuable and unique moments of life. With this purpose, the world's leading brands annually develop more advanced technology of recording and transmission of the photograph. After the transition to digital SLR photographers camera style and methods have undergone a radical image change. At the basic position were such important figures as clarity, brightness, contrast, exposure bracketing, distortion and noise matrix, and some others. In accordance with the new trends, the developers have been paying more attention to the function of the camera, which is aimed at addressing the possible manifestations of distortion.