18. а) употребите данные в скобках глаголы в соответствующем времени и залоге. communism is a political and economic doctrine which (to say) that everything must belong to the state and the government is to organize all the production. karl marx (to formulate) his idea of communism as «from each according to his ability, to each according to his needs». command economy where strategic decisions (to make) by government and (not to regulate) by the price system (to rely) on the communist doctrine. china still (to organize) its economy along communist lines but russia and other former (бывший) soviet union's countries and east-european countries recently (to move away) to more market-based economies.

Communism is a political and economic doctrine which says   that everything must belong to the state and the government is to organize all the production. karl marx  formulated   his idea of communism as «from each according to his ability, to each according to his needs». command economy where strategic decisions  are made   by government and  regulated   by the price system  relied   on the communist doctrine. china is  still    organizing   its economy along communist lines but russia and other former (бывший) soviet union's countries and east-european countries have  recently  moved away   to more market-based economies.

ответ:1. I am looking for you (я ищу тебя) 2. My mother is cooking dinner now (моя мама сейчас готовит ужин) 3. Boys are playing football (мальчики играют в футбол) 4. I am playing the piano (я играю на пианино) 5. You are doing homework (ты делаешь домашнюю работу) 6. The dog is running (собака бежит) 7. Father is reading a newspaper (папа читает газету) 8. I am watching a movie (я смотрю кино) 9. You are going to the cinema (ты собираешься в кино) 10. I am reading book (я читаю книгу) 11. Brother is playing volleyball (брат играет в волейбол) 12. I am helping my mother to cook breakfast (я моей маме приготовить завтрак) 13. Sister is waking up (сестра просыпается) 14. I am cleaning the room (я убираю комнату) 15. Cat is laying here (кот лежит здесь)

Объяснение: долго писал пользуйтесь.

1) was watching, heard

2)found, were digging

3)was standing,saw

4)were working, went

5)was telling,rang

6)was driving, stopped

7)were having,heard

8)was watching, fell

Объяснение:

Past Continuous- где действие происходило длительное время( процесс)

Past Simple- где прерывается действие

She was watching a documentary when she heard the loud noise outside.- Она смотрела документальную передачу, как вдруг она услышала громкий звук снаружи.

watching и смотрела- процесс

heard и услышала - прервало её действие( а именно громкий звук)

Ну вроде так