He set up in business ______ his own and was very successful.A、inB、ofC、onD、by

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问题 He set up in business ______ his own and was very successful.

选项 A、in
B、of
C、on
D、by

答案 C

解析 考查固定搭配。on one’s own(=by oneself)意为“独自”,符合句意要求。in和by都不与one’s own构成搭配;of one’s own表示“某人自己的(东西)”,如:I have a flat of my own.(我自己有套房子。)
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