句子大变脸：按要求改写句子。

1. My father is a doctor. (对画线部分提问)

    ____________ ____________ your father?

2. There are three people in my family. (对画线部分提问)

    ____________ ____________ people are there in your family?

3. Can you spell these words? (作否定回答)

    No, ____________ ____________.

现代社会中，（）即是企业运行、实施管理的必要手段，又是一种能带来效益的资源。