句型转换。

1. I am a student. (改为一般疑问句) 

                              a student?

2. Does Ｍichael come from the USA? (作肯定回答)

    Yes,                         .

3. My hair is black. (就划线部分提问). 

                               is your hair?

4. That is an old car. (改为复数句) 

                 are old            .

5. She has big ears. (改为同义句) 

                 ears              big.

6. She is thirteen. (就划线部分提问) 

                               is she?

7. Is this a blackboard? (作否定回答)

                 ,                            .