this is a man 改为复数怎么写

this is a man 改为复数怎么写 This is a man.That is a woman改为复数形式快,很急,现在就要 is this a car?改为复数形式怎么改? This is a bat.怎么改为复数形式 This is a backpack(改为复数句子)怎么改? this kind man is a teacher from the usa将主语改为复数 this is a man with black hair (改为复数句）------- ------two---------with black ------- This is a book 改为复数句 This is a pear.改为复数句 this is a book改为复数形式 This is a dress.改为复数形式 this is a tree 改为复数句 Is this a bus （改为复数句 This is a bus.改为复数. this is a shirt改为复数句 this is a strawberry改为复数 This is a young tree.(改为复数) this is a watch(改为复数句)