______ when to leave, I could only stay at home, _____ nothing. A．Knowing not; d

题干

______ when to leave, I could only stay at home, _____ nothing.

A．Knowing not; done	B．Not knowing; doing
C．Having not known; done	D．Not having known; doing

上一题下一题 0.85难度单项选择更新时间:2010-07-09 06:06:54

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