Until 1927 his theory to be ridiculous. A. has been believed B. is believed C. believed D. ——青夏教育精英家教网—

摘要： Until 1927 his theory to be ridiculous. A. has been believed B. is believed C. believed D. was believed

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(2010·北京广渠门中学高三开学考试) Until 1927 his theory ____ to be ridiculous.

A. has been believed B. is believed C. believed D. was believed

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