Поставьте предложения в отрицательную и вопросительную формы. 1. I speak English. 2. We work in the laboratory. 3. They know German. 4. They often speak about their experiments. 5. We like to go to the country. 6. We have a lot of laboratory assistants at our plant. 7. They seldom stay at home at the weekend. 8. I always call my friends. 9. I spend my holiday in the village. 10. We often go to the industrial exhibitions. 11. They like to go to museums. 12. You swim well. 13. He works at the factory. 14. She learns French. 15. It often rains here. 16. It seldom snows in April. 17. He likes foreign cars. 18. The scientists of our plant do researches in the field of mathematics. 19. The Professors of Moscow University publish interesting articles in scientific journals. 20. She likes to translate sentences from English into Russiаn.