does he want to be an engineer when he grows up?
what does his mother do?
it is an english book
He wants to be an engineer when he grows up.改为一般疑问句
He wants to be an engineer when he grows up.改为一般疑问句
His mother is a worker.对画线部分提问
_________
They're English books.改为单数形式
His mother is a worker.对画线部分提问
_________
They're English books.改为单数形式
英语人气：740 ℃时间：2020-04-25 23:15:23
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