句型转换。

1. These are Lucy's clothes. (对划线部分提问)

    _______ clothes _______ these?

2. These are not their books. ( 改为同义句)

    These ________ are not ________.

3. The boy in white is his brother. (对划线部分提问)

     ________ ________ is his brother?

4. My sister has big eyes. (改为一般疑问句)

     ________ ________ sister ________ big eyes?

5. She has a pencil box. (改为否定句)

    She ________ ________ a pencil box.