句型转换。

1. Eddie goes to sleep after breakfast. (改为一般疑问句) 

    ________ Eddie ________ to sleep after breakfast?

2. I am in the swimming club. (改为否定句) 

    I ________  ________ in the swimming club.

3. There is a library in the school. (改为复数句)

    There ________ some ________ in the school.

4. My trousers are black. (对划线部分提问)

    ________  ________ are your trousers?

5. I go to school on foot every day. (保持句意基本不变) 

    I ________  ________ school every day.

影响聚合物驱油效率重要因素不包括（）。

A、油层厚度

B、油层非均质性

C、水质矿化度

D、聚合物的用量