Прочитайте приведенные ниже предложения. Преобразуйте слова в скобках так, чтобы они грамматически соответствовали содержанию предложений.
How long ___________ it usually ___________ (take) to get from Moscow to Vladivostok by train?
Mrs Robinson ______________ (be) a member of Greenpeace for ten years. She saves endangered animals.
If people _____________ (not, pour) dirty water into rivers and oceans, we will live in a better world.
You look tired. How long _________ you _______ (work) in the garden?
Alice ______________ (know) me since I was 15, but as a person, not as a writer.
Dinosaurs____________(become) extinct 65 million years ago.
If you want to have a pet, the first thing you should do ____________(be) to think about how you will feed it.