Раскрыть скобки 1. peter said that he never (to read) that text-book on transmission technologies2. for the first time the use of nitrogen (to realize) by rutherford by 1911.3. he said that that group of students (not to work) on the experiment for the last 2weeks.4. i wonder if the laws of motion (to discover) by isaac newton or galileo galilei.5. at the conference held last week in sweden russia (to represent) by someoutstanding physicians.​

Вот про Китайскую стенк

Великая Китайская стена – грандиознейшее оборонительное сооружение в истории человечества. Предпосылки к созданию сложились еще задолго до многовекового строительства. Так множество северных княжеств и царств Китая строили стены для обороны от набегов кочевников. После объединения этих маленьких царств и княжеств в III веке до н.э. под династией Цинь императором был избран Цинь Шихуанди. Именно он объединенными усилиями всего Китая начал долгое строительство Великой Китайской стены, призванной защитить Китай от набегов вражеских отрядов

The Great Wall of China - the grandest fortification in the history of mankind. The prerequisites for creation were formed long before the centuries-old construction. So many northern principalities and kingdoms of China built walls to defend against the raids of nomads. After the unification of these small kingdoms and princedoms in the III century BC under the Qin dynasty, Qin Shi Huangdi was elected emperor. It was he who, through the combined efforts of all of China, began the long construction of the Great Wall of China, designed to protect China from the raids of enemy troops.

1. I'm not a doctor. 2. We don't cook every day. 3. We clean our teeth every day. 4. They don't have a flat. 5. He doesn't drive a car. 6. I don't take a shower in the morning. 7. We swim every day. 8. They don't clean their room at weekends. 9. He often talks with me. 10. She doesn't play the guitar. 11. You often ride a horse. 12. He doesn't help his mom. 13. She usually paints pretty pictures. 14. They don't like music. 15. They write emails every evening. 16. He always checks his emails. 17. He can't fly. 18. She doesn't write books.