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Never before _____ in greater need of modern public transport than it is today.

A. Beijing has been  
B. has Beijing been
C. was Beijing
D. Beijing was
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科目:高中英语 来源:0103 月考题 题型:单选题

Never before _____ in greater need of modern public transport than it is today.
[     ]
A. Beijing has been  
B. has Beijing been
C. was Beijing
D. Beijing was

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