Вставьте глагол '' to be'' в present, past 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 gallery. they lucky. 4. my father a teacher. 5.he a pupil twenty years ago. 6. i a docter when i grow up. 7. my sister not at home tomorrow. 8. you at home tomorrow? 9. yesterday we at the theatre. 10. my friend in astana now. 11. when i come home tomorrow, all my family at home.