It`s his pencil case.(改为否定句)
It`s his pencil case.(改为否定句)
It's my pencil case 改为否定句
It's his pencil box.改为否定句
His pen is in the pencil case 改为否定句
It's his pencil case.(改为复数)
This is his pencil case改为一般否定句 This is my eraser 改为否定句
It's my pencil sharpener.改为否定句.
It's his jacket.改为否定句
It's my pencil case.和She's her mother's good daughter.改为复数句.
This is his pencil.(改为否定句)
That is a pencil case.(改为否定句)
This pencil case is his 改为同义句