句型转换。
These are some orange pencil boxes. (改为单数) ___________ is an orange pencil _________.
That is my friend.(改为复数) ___________ __________ my friends.
My pencil is in the desk.(划线提问)___________ your pencil?
These keys are on the table.(改成一般疑问句)__________ __________ keys on the table?
I know his last name. (改为否定句) I __________ know his last name. [