---I’m so happy to see you again. Where have you been?---Canada! I _______ medic

题干

---I’m so happy to see you again. Where have you been?
---Canada! I _______ medicine there for four years.

A．studied	B．had studied
C．am studying	D．study

上一题下一题 0.65难度单项选择更新时间:2017-11-24 10:03:06

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