Is there a computer on your desk?做否定回答

Is there a computer on your desk?做否定回答 A,there is a computer on the desk改为否定句是什么?一般问句是什么?肯定,否定回答是什么 there is a book and aruler on the desk改成一般疑问句,做否定和肯定回答 There is a computer game on the desk 改为复数 There is a computer on the desk改成一般疑问句 is computer there on desk the a .连词成句 There _______a computer on the desk.A.is B.have There is a computer on my desk.一般疑问句 there is a book on the desk.变否定,变一般疑问句,回答. There is a toy car on the desk.(一般疑问句,并作否定回答） there is a computer on my desk 和this is a computer on my nde Is there a computer room in your school?如何否定回答?