Укажите номера предложений, глаголы-сказуемые которых стоят в a) present perfect b) past perfect c) future perfect. 1. i shall take this bag. 2. i have to go to the university. 3. they have not seen him. 4. he had written the letter before i came. 5. he had a letter in his hand. 6. he has come. 7. he has a book. 8. i shall go there. 9. they will have finished their work by 4 o’clock. 10. have you asked him a question? 11. we shall have these books. 12. they had come when you finished your translation. 13. they had six lessons. 14. we shall have translated the text when you come. 15.they had given us their books.