We are so happy to see the problem _______ so quickly.A．settledB．having been set_刷题宝

题干

We are so happy to see the problem _______ so quickly.

A．settled

B．having been settled

C．be settled

D．settling

上一题下一题 0.85难度单项选择更新时间:2013-06-06 06:01:02

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