My friend Jack was the first person I knew ______an iPhone 5S. A. using B. to use C. used D. having ...
2022-11-24 18:41:53 49次 2015届山东省高二上学期期末考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
My friend Jack was the first person I knew ______an iPhone 5S.
A. using B. to use C. used D. having used
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