израсходовали 0.8 запаса корма для птиц.Сколько килограммов корма осталось,если всего было 60 кг

Когда человек взрослеет,у него тускнеют глаза. Разбор предложения.

Поставьте глаголы, стоящие в скобках, в зависимости от смысла, в Present Indefinite или Present Continuous:

1. What you (to do) here? — I (to wait) for a friend. 2. He (to speak) French? — Yes, he (to speak) French quite fluently. 3. Listen! Someone (to knock) at the door.4.Don’t go Into the classroom! The students (to write) a dictation there. 5. She (to write) letters to her mother every week. 6. Ships (to travel) from Odessa to Batumi in three and a half days. 7. The man who (to smoke) a cigarette is our English teacher. 8. Let’s go tor a walk, it not (to rain). 9. You (to hear) anything? — I (to listen) hard, but I not (to hear) anything. 10. My brother (to smoke) a great deal.11.Listenl The telephone (to ring). 12. Where is Peter? He (to have) his English lesson. I think that he always (to have) it at this hour.

Поставьте глаголы, стоящие в скобках, в зависимости от смысла, в Present Indefinite, Present Continuous, Present Perfect или Present Perfect Continuous:

1. Helen (to learn) English at the Institute. She (to learn) English since last autumn. 2. They are busy now. They (to discuss) an important question. They (to discuss) it since five o’clock. 3. Where is Petrov? — He (to work) in thelibrary. — He (to work) long? — Yes, he (to work) since morning. 4. My brother (to be) in hospital. He (to be) there for ten days. 5.Ivanov (to teach)French. He is a very experienced teacher. He (to teach) French for fifteen years.6.I (to know) Peter well—Since when you (to know) him? — I (to know) him ince 1940.

Сначала цена товара понизилась на 10%,а затем повысилась на 10% .Как поменялась цена товара?