按要求写句子 1. This is my mother.(改为否定句) ____

问题：

按要求写句子

1. This is my mother.(改为否定句)

    __________ __________ my mother.

2. Is that your brother?(改为复数句)

    __________ __________ our __________?

3. Is he your good friend?(作肯定回答)

    __________, __________ __________.

4. Is this your sister?(作否定回答)

    __________, __________ __________.

5. Thanks for your family photo.(改为同义句)

    Thanks for __________ __________ __________ __________ __________.