My father retired in 2008, _____ he has been devoting his time to gardening. A.at which B.since when...
2022-11-08 14:13:03 205次 2014-2015学年福建漳浦第三中学高三上第二次调研考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
My father retired in 2008, _____ he has been devoting his time to gardening.
A.at which B.since when C.when D.after that
本题链接：
