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have been training 12. The Williams moved to a safer area and since then they _______ back to their past life. A. wouldn’t watch B. haven’t looked C. didn’t look D. hadn’t watched ___________________ ______________________ ________________ 13. Mary _______ with her grandma for thirteen years, but now she is living with her mother. A. lived B. has lived C. had lived D. is living 14. The room ____ very useful when we had visitors. A. was proved B. has been proved C. has proved D. proved 15. The window is dirty. I know. It ______ for weeks. A. hasn’t cleaned B. didn’t clean C. wasn’t cleaned D. hasn’t been cleaned 16. Miss White, please keep visitors off the meetingroom. A secret plan______ there. A. is made B. was made C. is making D. is being made _______ ________ ___________________ ________________ 17. You can’t use the machine today because some parts this week. A. are replaced B. are being replaced C. have replaced D. are replacing 18. When the factory __________, there will be many new jobs for graduates. A. will be built B. is built C. has built D. will have been built 19. — Why does the river smell terrible? — Because large quantities of polluted water _______ into it. A . have poured B. is being poured C. has been poured D. have been poured 20. .How long have you been in this pany, Tony? Since I _____from Beijing University. A. graduated B. have graduated C. graduating D. graduate ________________ _________ ________________ ________ 21. When I said someone cheated in the English exam, I you. A. wasn’t referring to B. had referred to C. has referred to D. will refer to 22. — Kate, please e and help me. —Sorry, Dad. I my bedroom. A. have cleaned B. am cleaning C. cleaned D. had cleaned 23. She ______ on the puter at home at this time yesterday. A. worked B. had worked C. was working D. is working 24. Paul didn’t want to put on the coat. He said that he _________ by his friends. A. will be laughed at B. will be laughed C. would be laughed at D. would be laughed _________________ ____________ ___________ ________________ 。 had trained C. have lost。 haven’t been reached 8. Now that she is out of a job, Lucy _____ going back to school, but she hasn’t decided yet. A. has been considering B. had considered C. considered D. is going to consider ____________________ ____