______ abroad for more than two years, he returned to his hometown.A．StudiedB．St_刷题宝

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______ abroad for more than two years, he returned to his hometown.

A．Studied	B．Studying
C．Having studied	D．To study

上一题下一题 0.85难度单项选择更新时间:2014-03-19 02:03:12

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