Doing morning exercises has helped to improve her health ______?A.isn"t itB.hasn"t itC.ha

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Doing morning exercises has helped to improve her health, ______?

A.isn"t it

B.hasn"t it

C.hasn"t they

D.hasn"t she

请帮忙给出正确答案和分析,谢谢!

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答案解析

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  • 正确答案:B
    反意疑问句题。当不定式短语、动名词短语、或其他短语作陈述句部分的主语时,反意疑问句的主语通常用it。本句陈述句部分动词为has,故反意疑问句为hasn’tit。故B正确。