Mary wrote books to earn money while John gained his wealth selling Mary’s works. A. with

发布时间：2020-08-30 00:42:31

Mary wrote books to earn money while John gained his wealth      selling Mary’s works.
A. with                   B. by                     on                         D. through

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解析：“通过某种方式”应该使用 “by doing something”，所以答案B。
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