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大学英语六级考试语法提高练习题 21.The doctors _______ the medicines to the people in the flood area. A. distributed B. packed C. prayed D. undertook 22.Much of the news provided by this newspaper is _______, not foreign. A. domestic B. strain C. purchase D. murder 23.He tried to _______relations with his former wife but he failed. A. measure B. maintain C. shelter D. reply 24.He _______ to study harder in the future so that he could have more opportunities to find a better job. A. resolved B. resorted C. requested D. reserved 25.The _______ work continued for more than a week but there was still no sign of the missing boy. A. research B. rescue C. vessel D. vast 26.Many kinds of animals are believed to have _________ from the earth A. withdrawn B. vanished C. found D. hung 27.The engineers in this lab spent several weeks _______ their plans for the new bicycle. A. counting B. stripping C. elaborating D. casting 28.Pine trees are usually believed to _______ cold weather. A. guard B. accomplish C. roar D. endure 29.Free medical service is _______ to nearly all the college students in China. | 
