1、this is a pencil(改为否定)
this is not a pencil.
2、It is white(对white提问)
What color is it?
3、is it orange not your(连词成句)
it is not your orange.
4、the quilt is blue(改为一般疑问句)
is the quilt blue?
5、Is the eraser green?(做否定回答)
No,it isn't.
6、I am Bob(改为一般疑问句)
Are you Bob?
7、That is my pencil case (改为一般疑问句)
Is that your pencil case?
8、my name is Tom(改为同义句)
I'm Tom.
9、P-E-N,pen(对PEN提问)
How to spell pen?