5. The is the longest river, the is the most important one.

Great britain is situated on the islands. it is washed by seas from all the sides. that’s why the climate and the nature of great britain are very specific. it is not very cold in winter and never very hot in summer. there is no ice on the lakes and rivers in winter. it seldom snows. it rains very often in all the seasons. the weather changes very often. all this is due to the influence of the gulf stream. so, we may say that the british climate has three main features: it is mild, humid and changeable. this humid and mild climate is good for plants. trees and flowers begin to blossom very early in spring.

1. I can’t speak about the book. I have not read it yet.
2. Every day I wind up my watch at 7 o’clock in the morning.
3. It’s Friday. Have you seen him this week?
4. Students usually buy books at the House of Books.
5. It’s a pity, but I have not bought this dictionary yet.
6. As a rule we do many exercises in class.
7. He has told this joke many times.
8. Something (has gone) wrong with my watch.
9. I have already ( translated) these sentences into French.
10. They ( have) their English many hours a week.
11. She (works) much and usually ( gets) many good marks.
12. We (have bought) a new TV set this year.