They are knives(改一般疑问句并用否定回答.改原句单数句子）

They are knives(改一般疑问句并用否定回答.改原句单数句子） They are knives.对knives进行提问( )( )they? They are take photos改一般疑问句 They are from China 改一般疑问句 They are playing basketball 改一般疑问句 They are twin sisters.(改一般疑问句) They are my parents 改一般疑问句 They are five变成一般疑问句怎么改 They are piaying basketball in the playground.改一般疑问句 They are taking pictures.改为一般疑问句,怎么改? They are rulers改一般疑问句并回答 They are bears.改为一般疑问句怎么改 they are in,the same school.改一般疑问句 they are long 用short改写成一般疑问句 They are chairs.改为一般疑问句,否定句怎么改? They are my father's.怎么改一般疑问句? They are my father's.怎么改一般疑问句 Are these knives