句子转换.

1. Where is your pen pal from?

    Where _______ your pen pal _______ from?

2. How was the weather last weekend?

    _______ was the weather _______ last weekend?

3. We have many rules in our school.

    _______ _______ many rules in our school.

4. My sister is thin with blonde curly hair.(就划线部分提问)

    _______ _______ your sister _______ _______?

5. You can't talk loudly in the library.(改为祈使句)

    _______ _______ loudly in the library.

电气控制设计的首要原则是最大限度满足生产机械和生产工艺对电气控制的要求。