Определите временные формы глагола в предложениях. Запишите предложения в вопросной и отрицательной формах. Переведите предложение. 1. Mr. - вопрос №4647074

Black always draws on a drawing board. 2. These young men and women studied at an English technical college in 2002- 2004. 3.Teachers sometimes hang tables and diagrams before a lecture. 4. The students will go to the institute by tram tomorrow. 5.You are waiting for your girl-friend now. 6. She is talking to a friend of mine at the moment. 7.Researchers of this laboratory have developed new equipment for TV communication. 8. The scientist had completed his research by the beginning of the conference. 9. They have finished their translation of the texts. 10. My father has just returned from a business trip. 11. They have already applied new methods in their research. 12. Our country has developed into a powerful state and has made great progress in all fields of industry, technology and science. 13. By the end of the 19th century scientists had made the first attempts to obtain synthetic materials.