题干

— You seem to be familiar with the school campus.
— I ______ here for three years. It’s great to be back.
A.have taughtB.taughtC.had taughtD.teach
上一题 下一题 0.65难度 单项选择 更新时间:2018-01-05 06:23:06

答案(点此获取答案解析)