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单选题
Many a student _____ the importance of learning a foreign language.
A
have realized
B
has realized
C
have been realized
D
has been realized
参考答案
参考解析
解析：
many a+名词单数，作主语时，谓语动词用单数。“意识到”应该用主动语态，故为B。
many a+名词单数，作主语时，谓语动词用单数。“意识到”应该用主动语态，故为B。
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