—Why was Professor Zhang unhappy recently?—Because the theory he insisted on _________ wrong.
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A
proved
B
proving
C
being proved
D
was proved
推荐题目
She suggested to the police in the police station that__________.
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A
Mr. Smith stole the necklace
B
Mr. Smith should steal the necklace
C
Mr. Smith had stolen the necklace
D
Mr. Smith steal the necklace