They don’t think the problem so far they_______.（）A．have had has been solvedB_刷题宝

题干

They don’t think the problem so far they_______.（）

A．have had has been solved

B．have had been solved

C．have to solve been solved

D．have solved has been solved

上一题下一题 0.4难度单项选择更新时间:2016-02-29 03:00:53

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