Take this medicine怎么改成否定句

Take this medicine怎么改成否定句 按要求该写句子：（1）Take this medicine with hot water.(改成否定句）（2）在下面 Please take the medicine before supper.(改为否定句) You should take some medicine.改为否定句 Is this your backpack?改成否定句怎么改 This CD sounds boring.改成否定句怎么改? Is this a ruler?怎么改成否定句 this is my mother 怎么改成否定句 This is the computer room.改成否定句 怎么改 连词成句：and,water,this,drink,medicine,more,take. 用 home ,medicine,go,take ,and ,this 组句 把下列句子改成否定句1.Please take this medicine2.Wemust call the docto