----If a new difficulty ______, what would we do ?-----Don’t hesitate to turn to

题干

----If a new difficulty ______, what would we do ?
-----Don’t hesitate to turn to us .

A．is arisen

B．will be arisen

C．arose

D．would arise

上一题下一题 0.64难度单项选择更新时间:2014-01-31 02:05:30

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