EXERCISE 1
1. When we came in, the children were cleaning their desks.
2. We met her at the bus stop. She was waiting for the bus.
3. Some of the children were skiing while other children were skating. Everybody was having a lot of fun.
4. When we came the family was getting everything ready for Christmas. Bob and Helen were decorating the Christmas tree.
5. The girls were feeding the birds in the garden while the boys were maling a bird-house.
EXERCISE 2
1. Alison was having lunch at two o'clock yesterday.
2. Edward and Henry were playing the guitar all the evening.
3. Ben was running in the park in the morning yesterday.
4. Lucy was ironing the clothes from 4 to 6 o'clock last Saturday.
5. You were sleeping for three hours in the afternoon.
6. Julia was listening to music at this time yesterday.
7. We were playing on the playgrounf all day last Sunday.
EXERCISE 3
1. The teacher wasn't explaining the exercise to the pupils.
2. Amanda wasn't travelling around Africa at that time.
3. I wasn't doing the shopping yesterday.
4. There weren't flying to Wales at 6 o'clock yesterday.
5. It wasn't raining hard all day last Tuesday.
Объяснение:
1.It is situated on the North America continent and is washed by the Pacific and the Atlantic oceans.
2. The USA borders on Canada and Mexico. There are six time zones.
3.The population of the USA is 320 million people.
4.There are five Greats Lakes between the USA and Canada. The climate is different in different regions of the country.
5.- No, it isn't. The capital of the USA is Washington.
6. New York is the largest city. Other large cities are San-Francisco, Los Angeles, Detroit, Chicago, Dallas and others.
7. The country is rich in coal, oil, natural gas, gold, silver and other minerals.
8. Such industries as mechanical engineering, ship-building, automobile, aerospace, heavy and light industries are highly developed.
9. American farmers produce wheat, corn, vegetables and fruit, meat and milk.
10. The USA is a federal republic.
11. Consisting of fifty states and a District of Columbia.
12. Congress is the American parliament.
13. It consists of the House of Representatives and the Senate.
14. The President is the head of the State and the government.
15. He is elected for four years.
16. he two main political parties are the Democrats and the Republicans.
Объяснение:
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