This is a cat.(改为复数形式)
This is a cat.(改为复数形式)
This is my book.(改为复数形式) There is a nice cat in the tree.(改为
This is my book.改为复数形式 There is a nice cat in the tree.改为复数形
it is a cat 怎样改为复数形式?
This is a black cat.(改成复数形式)
this is a beautiful cat 改成复数形式
This is a box.改为复数形式
This is a pen.(改为复数形式)
this is a book改为复数形式
Is this a bus?(改为复数形式) Those are erasers.(改为单复数形式)
This is a leaf.(改为复数形式)
This is a bus.改为复数形式的句子