Use the verb “to be” in the correct form. 1. our work … completed next week. 2. we … students. 3. hard work … a guarantee of success. 4. the train … late yesterday. 5. he … not at home now. 6. which party … in power in great britain ten years ago? 7. my aim … to master two foreign languages. 8. our students … in london last year. 9. we … in moscow in two days. 10. soon this book … translated into english. 11. when i met my friend i … going to the crimea. 12. the students … in the reading hall before the lessons.