句型转换。

1. The black socks are $7. 00. (对划线部分提问)

    _____ _____ are the black socks?

2. The store sells clothes. (改否定句)

    The store_____ _____ clothes.

3. I want a red sweater and white pants. (对划线部分提问)

    _____ _____ you want?

4. He has hamburgers for dinner. (对划线提问)

    _____ _____ he_____ for supper?

5. I sell some fruit to Tom. (改同义句)

    Tom_____ some fruit_____  _____.

6. Can I help you? (改同义句)

    _____ can I_____ _____ you?

（1）不是软件开发生命周期的六个阶段之一。生命周期中时间最长的是（2）阶段。

A．软件计划

B．软件测试

C．需求分析

D．系统验收