The excellent student, _______ abroad for many years, is on the way back to her

题干

The excellent student, _______ abroad for many years, is on the way back to her own country.

A．to study

B．studying

C．to have studied

D．having studied

上一题下一题 0.64难度单项选择更新时间:2011-10-29 10:47:06

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