---WhatareMrandMrsBlackdoing?---They________thegarden.A.arecleaningB.clea

发布时间:2020-08-07 01:28:26

---What are Mr and Mrs Black doing?---They ________ the garden.A.are cleaningB.cleanedC.cleanD.cleaning

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A解析此句是用现在进行时态提问的句子,回答也应该用现在进行时态.D项不合语法,故
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