Li Nan often helps Granny Liu do some cleaning ______ Sunday afternoons. A. in B. to C. on D. at
2022-10-04 07:58:45 150次 河北省邯郸市大名县2019届九年级第一学期期末检测英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
Li Nan often helps Granny Liu do some cleaning ______ Sunday afternoons.
A. in B. to C. on D. at
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