语态练习 1. The structure of aircraft _________ all the time. A. is being changed B. has been changed C. is being changing D. had changed 2. In 1950, she was the largest ship that ________. A. was ever built B. had ever built C. has ever been built D. had ever been built 3. It ’ s Sunday, so the library _______. A. has closed B. closes C. has been closed D. is closed 4. Are you sure all the windows ________? A. close B. closed C. have closed D. have been closed 5. A young hen is _________ a chicken. A. called B. known C. named D. recognized 6. The slaves were made ______ from morning till night. A. to work B. work C. working D. worked 7. This problem ________ by the school authorities soon. A. has been discussed B. will have discussed C. is discussed D. is going to be discussed 8. The Anti-Japanese War ______ in 1937. A. broke out B. was broken out C. had broken out D. was happened 9. _______ two tickets for the new play at the Theater on Saturday. Shall we go and see it together? A. They will give to me B. They have given to me C. I have been given D. I have given 10. -The ceremony has already started. -Look! The flag is ________ now. A. being raised B. risen C. being rising D. raising 11. The company ______ a rise in salary for ages, but nothing has happened yet. A. is promised B. is promising C. has been promising D. promised 12. They believe that by using computers the production of their factory ________. A. will greatly increase B. would greatly increase C. would be increased greatly D. will be greatly increased 13. This film __________ this Saturday, A. shows B. will show C. is to be shown D. is to show 14. I ’ ll taken down your name and address in case you _______ as a witness. A. are needed B. will be needed C. should need D. be needed 15. The children _______ many times not to go near the stove. A. have told B. told C. have been told D. were being told 16. I think much attention _________ your pronunciation. A. must be paid to B. ought be paid to C. must pay to D. should be paid by