题目内容
【题目】Tom is doing his homework now. (对画线部分提问)
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【答案】What is Tom doing now?
【解析】
句意为汤姆正在做家庭作业。画线部分是“正在做作业”,对动作提问,应该用疑问词what,该句时态为现在进行时,结构为:be+doing,主语Tom为单数第三人称,be应用is,do的现在分词为doing,故答案为What is Tom doing now?
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