1. Элементом «X» в схеме превращений X → XО2 → H2XO3 может быть: A) Сера B) Кальций C) Фосфор D) Алюминий E) Водород

1. If you_____________ (phone) me earlier, we could have bought this book. 2. I can’t stand Mr. Brown! He__________________(always / tell a lie). 3. Steven______________(work) at this problem for three months. We’ll be able to see the presentation next week. 4. We________________(just / buy) a new car. We can go to the see. 5. Before Olga came to London, she___________________(learn) English for three years. 6. When her mother came home, Helen____________________(clean) the room since morning. 7. Thank you for_______________(come) in time. 8. There is no reason in______________(argue). 9. If the train _________________(come) in time, we would not have been late at the concert. 10. Yesterday at 5 o’clock Tom _______________(do) his homework and could not go for a walk. 11. Yesterday by 5 o’clock Tom_______________(do) his homework and could go for a walk. 12. If you ________________(phone) me, I would go to the cinema. 13. When her mother came home, she______________(write) the letter and___________(go) to the park with her friends. 14. If he _______________( buy) a car, we’ll go to the see. 15. If he___________________(buy) a car, we would go to the see. 16. If he____________________(buy)a car , we would have gone to the see. 17. My father _________________(work) here for three years. 18. My father__________________( repair) this car since morning. 19. If I had learned the grammar rules, I __________________(not /get) a bad mark. 20. If I learned the grammar rules, I_______________________(not/ get) a bad mark. 21. If I learn the grammar rules, I_______________________( not / get) a bad mark.

не перевести а сделать задание!- you need to go out for a while.Leave a note for your parents.Write- where you are going? when you'll be back, remind then to walk the dog. 

У кур ген гороховидного гребня (А) доминирует на геном простого гребня (а), а по генам черной (В) и белой (в) наблюдается неполное доминирование: особи с генотипом Вв имеют голубую окраску. Какое потомство получается от скрещивания дигетерозиготного петуха с курицей, имеющей простой гребень и белую окраску? Запишите схему решения задачи.

Укажите генотипы и фенотипы родителей и потомков.

Распишите максимально подробно.