________ he had won the first prize, he felt very happy.A．KnowB．KnownC．KnowingD_刷题宝

题干

________ he had won the first prize, he felt very happy.

A．Know

B．Known

C．Knowing

D．Being known

上一题下一题 0.85难度单项选择更新时间:2010-10-09 02:44:20

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