Complete the sentences using the modal verbs "can", "may", "must".
10. I don’t believe that they didn’t recognize you. They … (fail to recognize) you.
11. His teacher … (help) him; his English is quite decent now.
12. My students … (be) at a lecture now. They never miss classes.
13. I don’t believe it. He … (write) the letter but the signature is certainly not his.
14. … this old man (be) your brother?
15. The message … (be delivered) in time as we received an immediate answer.

Last saturday i was a wonderful concert. it was an incredible sight. in koncertnom hall over a large bright ceiling hung a big ball. everything was bright and colorful. i was sitting in the third row from the stage, so i was all perfectly clear. first were the dancers. i was amazed at how quickly they got into a rhythm. then there were many talented singers. but most of all i liked the magicians. how quickly they lied to the audience. their attributes like a mystical way moved on the scene. under the table, in the bell and even in a bag of one of the spectators. when they began to call the audience on stage, i gudko wanted to get there. and yet i was invited. i was a little nervous, but the guys were very happy. one gave me a small box. i carefully examined it, like anything strange. then i had to guess the number. little podumav i sagal six. then in the box was a leaf with this number! it was incredible. i will always remember that night.

Britain which is formally known as the United Kingdom of Great Britain and Northern Ireland is the political unity of England, Scotland, Wales and Northern Ireland. 
It is located on the British Isles
Its total area is about 244 thousand square kilometres. 
The coasts of the UK are washed by seas of 2 oceans:  the Arctic and the Atlantic.
The scenery is the coastline is rather picturesque.
The capital of the UK is London.
The official language is English.
The national symbols of the UK are the Red rose and the Lion, the flag 'Union Jack', and the anthem 'God Save the Queen'.
Its form of government is a constitutional monarchy.
Officially the supreme legislative authority is the Queen in Parliament
and the two Houses of Parliament .and the elected House of Commons. 
But The Queen officially opens each Parliamentary session.
The  three major parties are the conservative party, the new labour party, and the democratic liberal party.
The largest cities are Birmingham, Glasgow, Liverpool, Manchester, Edinburgh, Belfast and Cardiff.
The chief river is the Thames River 
Britain's major industries include  iron and steel engineering, shipbuilding, electronics.