versity D. pleted universityР9. She had written a number of books ______ the end of last year.РA. for B. in C. by D. at Р10. He _____ to play ____ before he was 11 years old.РA had learned, piano B. had learned, the piano C. has learned, the piano D. learns ,piano. Р11. What _______ Annie ____ by the time he was ten?РA. did, do B. did, did C. has, done D. had done Р12 .He ___ in the factory for three years before he joined the Army.РA. has worked B. works C. had worked D. will workР13. By the end of last week, they ___ the bridge.РA. pleted B. completed C. plete D. pletedР14. Ben hates playing _____ violin, but he likes playing ____ football.РA. a…the B. the… the C. / …the D. the…/Р15. By the time he was 4, he ______ a lot of German words.РA. had learned B. has learned C. learned D. learns