句型转换
My pen is in the pencil-box.就划线部提问
_______ _______ your pen?
Is it on the sofa?改为复数形式
______ _______ on the sofa?
Dale’s baseball are yellow and red.就划线部提问
_______ _______ are Dale’s baseballs?
She doesn’t have a soccer ball.改为肯定句
She ________ a _______ ball.
We play volleyball.改为由let开头的祈使句
________  ________ volleyball.