--Willyoupleaseshowmehowtooperatethenewmachine?--Sure.It'sapieceo

发布时间：2020-08-04 20:40:58

--Will you please show me how to operate the new machine?--Sure. It's a piece of cake. Now let me tell you __________ to do first.A.whatB.howC.whetherD.which

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A解析考查“特殊疑问词+动词不定式”结构，句中what做do的宾语。
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