题干

Lucy ________ guitar lessons every three weeks in the past three years, but now she is considering she'll make it every other week.
A.is having B.had had
C.had D.has been having
上一题 下一题 0.64难度 单项选择 更新时间:2014-03-11 06:15:09

答案(点此获取答案解析)