Only when the meeting began that he had left his papers at his office.A．will he realizeB．he did realizeC．did he realizeD．should he realize 题目和参考答案——青夏教育精英家教网—

题目内容

24. Only when the meeting began _______ that he had left his papers at his office.

A．will he realize

B．he did realize

C．did he realize

D．should he realize

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