题目内容
【2015·江苏】30.The real reason why prices ____ , and still are, too high is complex, and no short discussion can satisfactorily explain this problem.
A. were B. will be
C. have been D. had been
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题目内容
【2015·江苏】30.The real reason why prices ____ , and still are, too high is complex, and no short discussion can satisfactorily explain this problem.
A. were B. will be
C. have been D. had been