is that a dish?复数句

is that a dish?复数句 That is her dish变复数 this is a dish变复数形式 this is may room用名词性物主代词mine写同义句 that is a pencil.改为复数句 is that a mouse?改复数句 That is a ruler作复数句 That is a dictionary.改为复数句 that is a bus.(变为复数句）that is a bus.(变为复数句） Is that a bus?(改为复数句） is that a watch?改为复数句急 That woman is a teacher改为复数句 That is a nice picture 改复数句 That is a kind child改为复数句 that is a sheep的复数句怎么写 Is that a ruler?(改为复数句） dish 复数 That is my brother.(变为复数句) lt is a nThat is my brother.(变为复数句) lt is a nice picture.(变为复数句) This is an eraser That is aThis is an eraserThat is a plate变复数句