Надо 4-6 речень про будущее компютеров. тхенкс )

Недавно компания Hewlett-Packard объявила о первых успехах в изготовлении компонентов, из которых могут быть построены мощные молекулярные компьютеры. Ученые из HP и Калифорнийского университета в Лос-Анджелесе (UCLA) объявили о том, что им удалось заставить молекулы ротаксана переходить из одного состояния в другое - по существу, это означает создание молекулярного элемента памяти.

Отрицательные
Ukraine isn't a sovereign state.
 It doesn't have its own territory, higher and local bodies of state power, government, national emblem, state flag, and anthem. 
The population of Ukraine isn't about 52 million people.
There aren't 24 administrative regions there.
Many countries don't have common boundaries with Ukraine and maintain economic relations with it.
Ukraine doesn't pursue peaceful and neutral policy.
It doesn't establish new relations with all countries throughout the world.
It doesn't set direct contacts with them signing agreements and treaties.
It isn't one of the founding members of the United Nations Organization and participates in the work of many international organizations.
Ukraine isn't a member of the International Monetary Fund, International Bank of Reconstruction and Development, International Finance Corporation, the European Bank of Reconstruction and Development, the North Atlantic Council of Cooperation, and others. 
The main river in Ukraine isn't the Dnipro which divides it into Right-bank and Left-bank territories.
Sea transport doesn't play an important part in Ukraine’s economy.
The ports of the country don't ensure trade  contacts with over 80 countries.
Вопросительные
Is Ukraine a sovereign state?
 Does it have its own territory, higher and local bodies of state power, government, national emblem, state flag, and anthem?
Is the population of Ukraine about 52 million people?
Are there are 24 administrative regions there?
Do many countries have common boundaries with Ukraine and maintain economic relations with it?
Does Ukraine pursue peaceful and neutral policy?
Does it establish new relations with all countries throughout the world?
Does it set direct contacts with them signing agreements and treaties?
 Is it one of the founding members of the United Nations Organization and participates in the work of many international organization?
Is Ukraine a member of the International Monetary Fund, International Bank of Reconstruction and Development, International Finance Corporation, the European Bank of Reconstruction and Development, the North Atlantic Council of Cooperation, and others? 
Is the main river in Ukraine the Dnipro which divides it into Right-bank and Left-bank territories?
Does sea transport play an important part in Ukraine’s economy?
Do the ports of the country ensure trade contacts with over 80 countries?

1) saw

2)I have known him for 5 years.

3) We have lived here since 2005.

4) He is playing chess now.

5) She will doctor next year.

Объяснение: Смотри, эти выделеные слова, указывают на время.

В 1 предложении выделено Last week (  на неделе), это указывает на время (Past Simple). В времени есть правильные и неправильные глаголы, можно посмотреть в талице. See является неправильным, поэтому нужное слово записано во второй колонке (saw). Во 2 и 3 Present Perfect. На это указывают for 5 years,  since 2005. В этом времени  

вс глаголом является Have, Has также глагол с 3 колонки неправильных глаголов. В 4 предложении Present Continuous, к глаголу добавляем окончание ing  и вс глаголы am ( для I) , is ( he, she.it), are ( множественное число). В 5 предложении будущее время (Future Simple) есть только вс глагол will.

Буду рада если нажмете