
⑴Are you a teacher? A.No. I am Bill.
⑵Are you hungry? B.This is a cat.
⑶Is it a bag? C.No. I am not hungry.
⑷Are you Mike? D.Yes, it is.
⑸What is this? E.Yes, I am.
—, .

—, I am.

—No, .

n
d
—不,我不是。