Вставить глагол to be в present simple, past simple или future simple 1.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 art gallery. they lucky.4. my fathet a teacher.5.he a pupil twenty years ago.6. i a doctor when i grow up.7.my sister not at home tomorrow.9. you at home tomorrow? 10. your father at work yesterday?