Помаги плиз)))Докажите ,что  четырехугольник ABCD с вершинами в точках A(-1,-2),B(2,-5),C(1,-2),D(-2,1) является параллелограммом .Найдите точку пересечения его диагоналей.

Упр. 186. Раскройте скобки, употребляя глаголы в Past Indefinite или Past Continuous.

1. Не (to get) up at seven o'clock yesterday. 2. Father (to come) home at six o'clock yesterday. 3. I (to read) a book at six o'clock yesterday. 4. She (to fall) asleep at eleven o'clock yesterday. 5. Mother (to drink) tea at eleven o'clock yesterday. 6. Father (to watch) TV at ten o'clock yesterday. 7. I (to go) to bed at nine o'clock yesterday. 8. I (to finish) my homework at nine o'clock yesterday. 9. I (to play) the piano at five o'clock yesterday. 10. He (to begin) to do his homework at four o'clock yesterday. 11. She (to wash) the floor at four o'clock yesterday. 12. I (to meet) Nick at three o'clock yesterday. 13. When Г (to come) home, Kate (to play) the piano. 14. When I (to meet) John, he (to go) to the railway station. 15. When I (to go) to the museum, I (to see) a big crowd of people in the street. 16. They (to play) in the yard in the evening yesterday. 17. They (to play) in the yard the whole evening yesterday". 18. I (to clean) my teeth at eight o'clock in the morning yesterday. 19. We (to go) to the wood in summer. 20. When the teacher (to open) the door of the classroom, the pupils (to sit) at their desks.

У томатов ген красной окраски плодов доминирует над желтой окраской плодов. При скрещивании гомозиготных красноплодных растений с желтоплодными получено единообразие гибридов 1 поколения. При скрещивании гибридов 1-го поколения между собой во втором поколении наблюдается расщепление в отношении 3:1 ПО ФЕНОТИПУ. Запись схемы данных скрещиваний. СРОЧНО!!!!