He is writing a letter______ a pen that I have never seen before. A. by B. with C. for D. at
2022-11-13 04:23:03 139次 2015届北京市高三上期中英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
He is writing a letter______ a pen that I have never seen before.
A. by B. with C. for D. at
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