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ell before 1900. A. have been conducting B. were conducting C. had been conducting D. being conducted 17. We_____ him with a detached house but he specifically asked for a small flat. A. must have provided have provided C. might provide to provide 18. She had just been to the hospital to see her husband and had returned home rather ____ by her experience. A. had been distressed be distressed C. distressed D. being distressed 19. Many people are unware that prairies once existed _______ is now the state of Michigan. A. in that B. in that place C. in which D. where 20. To what extent will future scientific discoveries_____ the lengthening of the human life ? made possible B. make it possible C. make possible D. be made it possible 21. As it turned out to be a small party , we ____ so formally. A. needn’t dress up B. did not need have dressed up C. did not need dress up D. needn’t have dressed up 22. I apologize if I ______ you, but I assure you it was unintentional. A. offend B. had offended have offended have offended efforts to increase agricultural production must be made if food shortage____ avoided. A. is to be B. can be C. will be D. has been 24. I’ve kept up a friendship with a girl whom I was at school ____ twenty years ago. A. about C. till D. with 25. A statue, a monument, a building, or a park may be dedicated____ a distinguished individual. A. in order to honor B. to honoring honor D. for honoring 26. It was such a newspaper of a new type,____ had never before existed in the history of the labor movement. A. such as B. when it C. that D. which it 27. The woman, who works in a joint venture, is married to a ____ man who is in charge of the financial affairs in the pany. A. Russian young brilliant B. young brilliant Russian B. brilliant young Russian D. brilliant Russian young 28. Xrays are able to pass through objects and thus make ______ details that are otherwise impossible. A. it visible B. them visible D. vi