按要求完成下列各句。

1. We can hold a ______ sports meeting. (success) (用所给词的适当形式填空).

2. There are some ______ (different) between the cats. (用所给词的适当形式填空).

3. — Tom, could you fold the clothes? (作否定回答)

    — Sorry, ______ ______.

4. She is a woman engineer. (改为复数形式)

    They are ______ ______.

5. It's ten miles from the post office to the bank. (对划线部分提问)

    ______ ______ is it from the post office to the bank?

6. He didn't go to school because he had a sore back. (同义句转换)

    He didn't go to school ______ ______ his sore back.