I watched everyone hurrying to and fro, most with eyes ____ the ground.A．fixed o_刷题宝

题干

I watched everyone hurrying to and fro, most with eyes ____ the ground.

A．fixed on

B．fixing on

C．to fix on

D．fix on

上一题下一题 0.4难度单项选择更新时间:2012-07-11 07:37:45

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