A. it isn't
B. I am not
C. I can
D. I can't

A. Is; is
B. Are; are
C. Is; isn't
D. Are; aren't

A. Yes, I am.
B. Yes, I'm.
C. Yes, it is.
D. No, it is no.

1. Is the book under the sofa? (做否定回答)
    ______, ______.
2. The keys are on the dresser. (对画线部分提问) 
    ______ ______ the keys?
3. Is it in the backpack? (改为复数形式)
   ______ ______ in the backpack?
4. I know the teacher. (改为否定句)
    I ______ know the teacher.
5. They are on the sofa. (改为一般疑问句) 
    ______ ______on the sofa?

[     ]

A. Where are
B. What is
C. Are they
D. Is it

A. Yes, I am.
B. Yes, I'm not.
C. Yes, I like it.
D. No, I don't.

1. His baseball is under the table. (变为一般疑问句)
   _____ his baseball _____ the table?
2. His dresser is next to his bed. (变为否定句)
   His dresser _____ _____ next to his bed.
3. My keys are on the sofa. (对画线部分提问)
   _____ _____ my keys?
4. Mike is behind the door. (对画线部分提问)
    _____ _____ behind the door?
5. I draw pictures on the wall. (变为否定句)　　
   I _____ _____ pictures on the wall.

A. they are
B. they aren't
C. it isn't

A. has; do
B. have; does
C. has; does
D. haves; do

A. Does; do
B. Do; does
C. Does; does