They are doing their homework．
一般疑問句：Are they doing their homework？Are they doing their homework？
否定句：They are not doing their homework．They are not doing their homework．
【考點】陳述句與一般疑問句轉(zhuǎn)換．
【答案】Are they doing their homework？；They are not doing their homework．
【解答】
【點評】
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發(fā)布：2025/4/11 13:0:1組卷：24引用：4難度：0.7