There is（ ）eraser on the teacher's desk.( )raincoat is in the bag.括号里填介词

Is that your eraser?(改为同义句）Is----------eraser-----------? Is there a pen two eraser in the box.___there(填be动词） there is an eraser on the desk 对划线句提问 an eraser 划线 there ___an eraser under the desk.Is it yours?为什么 There is a eraser on the desk改错 There is（ ）eraser on the teacher's desk.( )raincoat is in the bag.括号里填介词 this is （ ）eraser.（ ）mine And that is my eraser.(翻译） hello,Jenny.（ ）,Sally.Nice to meet（ ）what is that over there?it is an （ ）.（ ）that your eraser?no it is not.（ ）eraser is in my pencil case. There is nothing in ________ of his hands and there is an eraser in ________ There is only one eraser in his pencil case.(改为同义句） There are ____ _____ ____ in his pencil case This is（）（he）eraser.It’s not my eraser. This eraser is mine . (改为一般疑问句）______ this eraser _____ ? --is that( )eraser?--yes,it,s( )eraser. Is this your eraser?(同义句）Is this___ ____? It is an eraser. That is ( ) eraser. It is an eraser?