Water is considered to be the most essential material of civilization.
Правильный ответ - с. essential.
Удачи
1. Where is your luggage? I have left it at the station. I * ll take it tomorrow when Nick o comes to help me.
2. I had been reading about an hour when he came.
3. The play has not yet begun and the people were talking in the hall.
4. Yesterday I bought a new pair of gloves, as I had lost the old ones.
5. We were walking in silence. He had already told me all that was interesting about himself, and I had nothing to tell him.
6. The moon had not risen yet, and only two stars, like two distant lighthouses, were shining in the dark blue sky.
7. One night a little swallow flew over the city. His friends had flown away to Egypt six weeks before, but he stayed behind.
8. What have you been doing these three months?
9. Our train starts late in the evening, so if you come at seven o'clock, we*ll still pack our luggage.
10. When have you seen him last?
11. I met him when he was walking across the park.
12. Have you ever acted on the stage? Why, yes, that's what I have been doing for the last six years.
13. Don't enter the bedroom! The child is sleeping there, and he always wakes up when somebody opens the door.
. The office is empty now. Everybody HAS GONE home.
2. I meant to call you last night,but I FORGOT.
3. Mary WENT to Egypt for a holiday but she's back home in england now.
4. Yes, I HAD a headache but i feel fine now.
5. Can you help us? Our car HAS BROKEN down.
6. I did German at school but I HAVE FORGOTTEN most of it now.
7. The police ARRESTED three pople,but later they let them go.
8. What do you of my English? Do you think it HAS IMPROVED?
9. I APPLIED for a job as a tourist guide,but i wasn't successful.
10. Where is my bike? It WAS outside the house,but it's not there now.
11. Look! There's an ambulance over there,There HAS BEEN an aCciDent.
12. Have you heard about Ben? He HAS BROKEN his arm. RealLy? How DID that HAPPEN? - He FELL off a ladder.
Объяснение:
c.essential
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