例如 He's doing his homework. 一般疑問(wèn)句 Is he doing his homework?
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長(zhǎng)寧天" />
更新時(shí)間:2021-06-09 05:39:40作者:admin2
適用的,一般疑問(wèn)句,如果有be動(dòng)詞,只是把be動(dòng)詞提前而已,后面的動(dòng)詞還是用doing形式。
例如 He's doing his homework. 一般疑問(wèn)句 Is he doing his homework?
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長(zhǎng)寧天山英語(yǔ)組