Прочитай предложения и вставь is или are. nice garden behind the house. lot of big apple trees in the garden. cow and a house near the river. there a bridge over the river? - no, there n't. there many forests in russia? - yes, there .

Is are are is , isn't are, are

Is, are, is, is, is not, are, are

1. montanelli entered the room where arthur him at the supper table. (was waiting) 2. miss marple’s telephone rang when she (was dressing) 3. i lighted my pipe afresh and nodded to him to show that i (was listenin) 4. the sergeant his (was writing,  entered) 5. she __ to lunch and dine with her and once or twice a year to spend a week-end at her house in the country. ( invited) 6. clyde she talked how different she was from hortense. (was thinking) 7. the storm grew worse and worse, and little hans could not see where he (was going) 8. it was warm and cosy in the kitchen when he walked in. madam perier her husband ”the paris-soir”. (was cooking, was reading) 9. what was nick (doing) when you ( rang) him up yesterday? — he (was playing) the piano. he ( told) me that he had already (written) his composition.10. when nick (came) home yesterday, his mother (had returned) and (was cooking) dinner in the kitchen. 

1. Because it was very difficult to build tall skyscrapers at that time and it was dangerous,it was difficult to get the necessary funds to build a skyscraper.

2. They can start building skyscrapers when they are sure that they have the right materials and the land is suitable for building a tall building.

3. When the Elevator was invented, people's lives became noticeably easier.And people were able to build taller skyscrapers.

4. Because it would be inconvenient to build them outside the city, especially since when building a skyscraper in the city there may be offices,shops,apartments, etc.

5. Because these buildings are built "to the sky".

6. It was built over two years, from 1929 to 1931.

7. Here you can find various cafes, shops, supermarkets and apartments, as well as much more.

)Как то так

Объяснение:

Обьяснение надо? или можно только ответ