29．My best friend Gina studies very hard．She often studies very late every night, sometimes 2A——青夏教育精英家教网—

摘要：29．My best friend Gina studies very hard．She often studies very late every night, sometimes 2Am． A．at B．until C．before D．to

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My best friend Gina studies very hard．She often studies very late every night, sometimes _____2 a.m．

A．at B．until C．before D．to

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