As ______along the river bank, she was singing a pop song.A．walkingB．walkedC．to_刷题宝

题干

As ______along the river bank, she was singing a pop song.

A．walking

B．walked

C．to walk

D．walk

上一题下一题 0.64难度单项选择更新时间:2011-04-29 04:34:33

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