Раскрыть скобки 1. i (not to see) him ever since i (to leave) moscow. he (to be interested) in different space systems ever since he (to read)a book about them last year. 2. we (to participate) in all the international expositions ever since the first one (to hold) in london in 1851. 3. many interesting international exhibitions (to hold) in sokolniky park ever since the first one (to hold) there in the early 60s.

1.haven't seen,left,is interested,read
2.have participated,held
3. have held,held

1. I haven't seen him ever since I left Moscow.
He is interested in different space systems ever since he read a book
about them last year.
2. We have participated in all the international expositions ever since the first one held in London in 1851.
3. Many interesting international exhibitions have held in Sokolniky Park ever since the first one held there in the early 60s.

My favorite dish is pizza. In order to prepare it, you need flour, sour cream, eggs, as well as ingredients for the filling. The filling can be any. I prefer pizza with ham and tomatoes. Pizza preparation takes place in several stages. First you need to prepare the necessary products: wash and cut the red tomatoes into circles, cut the ham into thin strips and grate the cheese on a coarse grater. Then you need to knead the dough. To do this, mix the sour cream with eggs, salt and flour, and knead the dough until it becomes soft and elastic. Then cover the dough with a napkin and let it "rest" for 30 minutes.

After the dough has lain down, it should be rolled out into a pancake half a centimeter thick and transferred to a pre-greased baking sheet. The next step is to lay out the filling in layers. First put the tomatoes, then the ham, and sprinkle with grated cheese on top.

Then you need to preheat the oven to a temperature of 180 degrees, place the pizza pan in the oven and bake for 20 minutes.

1. Flowers were bought by me yesterday.
2. His car was damaged by him last night.
3. The garage is cleaned by her twice a week.
4. The meeting will be opened by him at nine.
5. A lot of money were paid him by me to do the job.
6. The letter has just been received by her.
7. The newspapers will be sent by us by train.
8. All the tickets were already been sold by them.
9. Acid rains are caused by burning coal or oil.
10. The party has been told by me to my friends about.
11. This programme will be showed by them on television.
12. This button mustn’t be touched by you.
13. I wasn’t allowed to come in.
14. The carpet hasn’t been cleaned by him yet.
15. Baby is looked after by Jane well.