— has Jack been studying English? —Since he was seven years old. A、How longB、How oftenC、When
2023-01-29 02:27:44 19次 2015届山西农业大学附属中学八年级下期末英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
— has Jack been studying English?
—Since he was seven years old.
A、How longB、How oftenC、When
本题链接：
