3. определите время и залог сказуемого в предложении practically all oceans and seas are used for dumping industrial and nuclear wastes. поставьте предложение во все времена группы perfect passive voice, внеся необходимые изменения (обстоятельства времени). 4. употребите следующую структуру в
i,ii,iii типах предложения условия. if the world population (to continue) to grow there (to be) a disaster.

I have some ideas about TV programmes.There are many channels on television nowadays.There is a chanel about sport,about music,about animals and pets,news and politics.It would be a good thing to create such channel as "Teenagers".In my opinion it would be a very popular channel.Nowadays ,teenagers have many problems which are got a start in connection with people the same age ,doing home work quickly,bad relationships with parents, harmfull habits ,wrong spending free time and others.I think this channel can broadcast the usefull programmes that will be very helpfull for teens. It can be studing programmes,chating with the psychologists and some interesting films for the definite age.

Vitebsk is a city in North-Eastern Belarus, the administrative center of Vitebsk region and Vitebsk district.

A population of 374 174 persons (1 October 2015)[4]. Area — 124,538 km2.

The city is located in the Eastern part of Vitebsk region on the banks of the Western Dvina river. The second most ancient city in Belarus after Polotsk. Fourth by population (after Minsk, Gomel and Mogilev) city in the country.

The town was founded on the high banks of the Western Dvina and Vitba, which gave him the name that is on the way "from the Varangians to the Greeks". As the urban legend of the 18th century it was founded by the Saint equal to the apostles Princess Olga. The city was formed as one of the centres of the Association of Slavic Krivichi, and a convenient geographical position at the crossroads of major trade routes contributed to the growth and prosperity over the next centuries