____________ at college for 3 years, she knows the place very well.A．To have stu

题干

____________ at college for 3 years, she knows the place very well.

A．To have studied

B．Having studied

C．Studying

D．Studied

上一题下一题 0.85难度单项选择更新时间:2010-08-03 09:13:24

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