-Whataretheshoeswithadjustableheelsusedfor?-Theyareusedto________thes

发布时间:2020-08-07 04:00:30

-What are the shoes with adjustable heels used for?-They are used to ________ the style of the shoes.A.changedB.changingC.changesD.change

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D解析be used后可跟动词不定式,也可接for doing sth.结构,意义基本相同。
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