Mary wrote books to earn money while John gained his wealth _________ selling Mary’s works. A. on B....
2023-01-27 18:19:42 59次 2010年延安市高二下学期期末考试英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Mary
wrote books to earn money while John gained his wealth _________ selling Mary’s
works.
A.
on B.
by C.
in D. through
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