That isn't my CD 改成复数形式

That isn't my CD 改成复数形式 把That isn't my CD.改为复数句 That isn't my backpack改为复数 That isn't my coat._(my)is over there That isn't my pencil case.变为复数 isn't that amazing Isn't that grand? It's not my fault可不可以改成It isn't my fault? That sounds good .改成否定句用doesn't 还是isn't ,原因 My mother aren't feeling well these days是不是把aren‘改成isn’t The bookcase isn’t for my sister.怎么改成肯定句 because it isn`t like that you imagining1这句话对不对.为什么?2这是个什么句子?改成because it isn`t like that you imagine. My mother thinks that a present like that isn't s____ enough. 翻译：isn't that amazing. that man isn't oid. isn't that boring是什么意思 ( ) That isn't my backpack.It's____.A my brother B my brother' C my brother's That's my eraser.(改为否定句）可以这样写吗:That isn't my eraser.如果不行,为什么?