句型转换。
This is my backpack.   ( 改为否定句 )
This _____ ______ my backpack.
These are Tom’s parents. （变一般疑问句, 并作肯定回答)）
__________ __________ Tom’s parents?
Yes, _________ _________.
My ID card number is 1971012649623456.  ( 对划线部分提问 )
_________ ________  ID card number?
The watch is under the bed.  ( 对划线部分提问 )
_______ ________ the watch?
My mother is a teacher.( 改为一般疑问句并作肯定回答 )
________ _______ mother a teacher?
Yes, ________ ________ .