句型转换。

1. Is this his hat? (作肯定回答)

    __________________________________________

2. Those pants are nine dollars. (画线提问)

    _________________________________ 

3. We have black and blue sweaters. (同义句)   

    We have sweaters ________ ________ ________ ________.

4. We need vegetables every day.(改为一般疑问句并作肯定、否定回答)

    ________ you ________ vegetables every day?

    Yes, ________ ________ .       ________, we ________ .