The machine has been made easier for it____.A．to operateB．operatedC．being opera_刷题宝

题干

The machine has been made easier for it____.

A．to operate	B．operated
C．being operated	D．to be operated

上一题下一题 0.4难度单项选择更新时间:2012-10-08 07:24:53

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