Put the verbs in brackets into the correct tense. 1)if )their cars less, there would be fewer traffic jams. 2)if were you, ) organic food more often. 3)when ) waste, it causes air pollution. 4)if )paper, you will help a lot. 5)if everyone drove an electric car, ) less polluted.

1)If people.(used)their cars less,there would be fewer traffic jams.
2)If were you, I would (eat) organic food more often.
3)When you(burn) waste,it causes air pollution.
4)If you (recycle)paper,you will help a lot.
5)If everyone drove an electric car, cities would (be) less polluted.

1, My father is a teacher. 2. He was a pupil twenty years ago. 3. I will be a doctor when I grow up. 4. My sister will not be at home tomorrow. 5. She will be at school tomorrow. 6. Will you be at home tomorrow? 7, Was... your father at work yesterday? 8. My sister ..was . ill last week. 9. She is not ill now. 10. Yesterday we... at the theatre. 11. Where is  your mother now? — She is in the kitchen. 12. Where were you yesterday? — I was at the cinema. 13. When I come home tomorrow, all my family will be at home. 14.Is your little sister in bed now? — Yes, she is15.Will you be... at school tomorrow? — Yes I will . 16. When my granny was... young, she was an actress. 17. My friend K is,,. in Moscow now. 18. He will be in St. Petersburg tomorrow. 19. Where are your books now? — Theyare in my bag.
1. I will play) chess tomorrow. 2. I will not play) chess tomorrow. 3. Will you
play) chess tomorrow? 4. He plays) chess every day. 5. He  does (not play)
chess every day. 6. Does he  play) chess every day? 11. Nick  goes) to school every day. 12. Nick will go) to school tomorrow. 13. Will you come) to my place next Sunday? 14. Will you  read) this book next week? 15. Do you read) books every day? 17.1 will not see) him tomorrow. 18. What will you  do) tomor¬row? 19. What will your friend  do) tomorrow? 20. Where will you  go) next summer? 21. Where do you  go) every morning? 24. She dances every day. 25. Will she  dance) tomorrow?

I would like to tell you about our library . This is a big grey building in the center of the city. There are several floors in it, but I was only on the first two floors. When you enter the library you can see a huge light hall . There are so many portraits of Russian and foreign writers on the walls. Here there is a large museum , where you can visit several exhibitions. Upstairs there is a large room with many tables, cabinets and shelves full of different books .They are divided into different sections . I usually visit only the section of fiction and nonfiction. On the third floor there is the largest reading room in the city, but I haven't been there yet . We have an excellent library .

Я хочу рассказать вам о нашей библиотеке. Это большое серое здание в центре города.  В нем несколько этажей, но я была только на двух первых этажах. Когда входишь в библиотеку видишь огромный светлый холл. На стенах очень много портретов русских и зарубежных писателей. Здесь же большой музей, в котором несколько выставок. На втором этаже огромный зал в котором много столов, шкафов и полок, полных разных  книг. Все они разделены на разные секции. Я обычно хожу в секцию художественной литературы и научной литературы. На третьем этаже самый большой в городе читальный зал, но я там еще не был. У нас замечательная библиотека.