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Exercise 7. Put «to be» in Present Simple, Past Simple or Future Simple.

The students ... in the Russian Museum. 2. Last month they ... in the Hermitage. There … an interesting exhibition there. 3. In two weeks they ... in the Tretyakov Gallery. They ... lucky. 4. My father …a teacher. 5. He ... a pupil twenty years ago. 6. I ...a doctor when I grow up. 7. My sister ... not ... at home tomorrow. 8. She ... at school tomorrow. 9. ... you ... at home tomorrow? 10. ... your father at work yesterday?