1.You should use present perfect or present perfect progressive

1. John looks tied, we think he ( do) his homework.
2. Their university ( study) ecological problems for many years.
3. A lot of trees are lying on the ground. It seems to me a very strong wind ( blow)
4. I’m very sorry that I (break) your cup.
5. He (know) us for many years
2.Find out the time of these sentences present perfect or present perfect progressive

1. It has been raining all day. When will it stop?
2. It is noon. You have been working on the computer for two hours already
3. We have never been to Australia. And John has been living there all his life.
4. She says she has never spoken to any famous traveller.
5. Nancy has travelled in Canada this year.

I spent a lot of time at the college, that is why it was necessary to have a snack time there. During the break i went to have lunch to our college canteen. It was always full of people at that time, I went to the service counter and lined up. There was seif-service at our canteen. Sometimes it took quite a lot of time to stand in the line and i had to gulp me lunch in five minutes. The choice of dishes in our was rather rich, the quality of food was good and the prices were reasonable.To begin with, I usually had some salad — tomato and cucumber salad or mixed salad. For the first course I had soup — fresh cabbage shchee, solyanka, pea soup or maybe some fish soup for a change. For I the main course I had meat or chicken dishes, for example steak, meatballs or roast chicken with spaghetti or potatoes (mashed or fried). For dessert I usually had fruit juice or a cup of tea with a bun. I took them from the counter, put on my tray and went to the cashier's desk to pay the money. Then I took a seat at any vacant table.Besides the kitchen staff and the cashier two or three students on duty helped to clear the plates and cups off the tables and to keep order in the canteen.

1. I met George Swift as I was going down the street.

2. The USA is situated in  North America and borders on Mexico and Canada.

3.  Doctor Miles phoned you an hour ago.

4. We expect the Morgans for dinner.

5. He has a wonderful house in  Greece.

6.The Dnieper is one of the longest rivers in Russia.

7. The country is situated in  Western Europe.

8. If you want to get to  England from  France you must cross the  English Channel.

9. They spent their vacation in the Alps.

10. The Netherlands border on  Germany and  Belgium

11. The climate in Mexico is rather hot.

12. Is he the Bill you told me about?​

Объяснение: