否定句怎么改,要详细,比如They are reading the newspaper改成否定句

否定句怎么改,要详细,比如They are reading the newspaper改成否定句 英语否定句怎么改怎么改 They are cats They like English very much.变否定句怎么改? They need some appies 怎么改否定句 They are chairs.改为一般疑问句,否定句怎么改? they are in class eleven 改为否定句怎么改 把they must go now改为否定句,怎么改? 否定句怎么改 怎么改否定句? 改否定句怎么改 英语怎么改否定句和一般疑问句（要详细的） They're my grandparents怎么改一般疑问句,否定句,肯定回答和否定回答 They played basketball yesterday改否定句 they are my uncles 改否定句 they like cucumbers.（改否定句） They work in Tianjin(改否定句) They are eleven改否定句 改成否定句怎么改