Exercise 2. Поставьте предложения а) в во б) в отрицательную форму.
1. My sister is preparing for exams now. 2. She is going to be a teacher of mathematics. 3. I am looking for a hotel on the internet now. 4. We are going on holiday at the weekend. 5. The ship is approaching a bridge.
6. They are watching a film on TV now. 7. Mike is taking part in the football match now. 8. My wife is cooking dinner now. 9. I am helping my son to prepare for the test on physics. 10. The plane is taking off.
11. The girl is painting a flower. 12. We are listening to the news now.
13. We are going for a walk later. 14. Olga is talking to her sister now.
15. The boys are playing football at this moment. 16. We are hasing coffee now.

1)мы знаем,что он работает над проблемой космической связи. 2)если вы совершите,даже малейшую ошибку на компьютерном языке, разговор не получится, и вы обязаны начать с заново.3)читальный зал библиотеки конгресса занимает большая коллекция справочников.

by 

перевод: есть много легенд о робин гуде. по рождению он был саксонцем. 

winter holidays  my name is пиши своё . i’m thirteen years old. my favourite season is winter. my holidays began on the 28th of december. i am in a good mood because new year’s day and two weeks of the rest will come soon. i like festive bustle. in the first day of our holidays i and my sister decorated our flat and we also decorated the christmas tree in the evening. there is a tradition in our family: we all go skiing to the forest in the morning in the last day of the year. we enjoy beauty of the forest, breath fresh air and have a great time. usually our walk takes us two hours. then we begin to prepare for holiday. in the first day of january we went to celebrate our grandmother and grandfather and next day we went to street festivities at city square. the whole holidays i and my sister were spending much time in the street. we could go skating, having a fight with snowballs or making a snowman. also we walked in the snow-covered park. i liked my winter holidays very much.