this is a cat.改为一般疑问句.It is a carrot.改为负数形式.They are vegetable and fruit.第三句话对vegetable and fruit 提问.

it is a cat改为一般疑问句 This is a cat.(改为复数形式) It is a cat now.(改为一般过去式） this is a cat.改为一般疑问句.It is a carrot.改为负数形式.They are vegetable and fruit.第三句话对vegetable and fruit 提问. It is a cat 改为一般疑问句It is a cat 一般疑问句：肯定回答：否定回答：否定句： This is a desk.(改为一般疑问句) This is a ruler 改为一般疑问句 this is a pencil 改为一般疑问句 This is a computer.(改为一般疑问句) This is a pen.改为一般疑问句 This is a key改为一般疑问句? This is a ruler改为一般疑问句 This is a map 改为一般疑问句 This is a camera.(改为一般疑问句) 求文档: that is a black and white cat.怎么改一般疑问和否定句 This cat is purple改为否定句 This is a white bike.改为一般疑问句My chair is orange.改为一般疑问句,肯定回答 Is that a gray pencil?否定回答These books are Miss Gao's.用Whose提问This is a new door.改为否定句That's a black cat 对a black cat提问It's b the is a cat.[用a cap 改为一般疑问句]求大神帮助