_____ to school this morning, I met a friend of mine.A．I was walkingB．WalkingC．W_刷题宝

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_____ to school this morning, I met a friend of mine.

A．I was walking	B．Walking
C．While I walking	D．Walked

上一题下一题 0.64难度单项选择更新时间:2011-07-19 01:25:02

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