the situation, Charles Yerkes undertook the system in 1902 by obtaining ownership of man

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解决时间 2021-01-03 21:18

提问者网友：浮克旳回音
2021-01-02 21:11

the situation, Charles Yerkes undertook the system in 1902 by obtaining ownership of many different lines.
A. Seeing, improving
B. Seen , improved
C. To see, to improve
D. Having seen, improving

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五星知识达人网友：酒者煙囻
2021-01-02 22:44

A. Seeing, improvingB. Seen , improvedC. To see, to improve(答案→)D. Having seen, improving解析：考察分词作状语和固定搭配。第一空的动词see与句子主语Charles Yerkes构成主动关系，说明使用现在分词，因为这是已经发生的事情，故使用完成式。第二空是固定词组undertake doing sth承诺做某事。故D正确。

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1楼网友：三千妖杀
2021-01-02 23:59

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