题目：
句型转换。
1. He sleeps 15 hours a day.(改为一般疑问句并作肯定和否定回答)
— _____ he_____15 hours a day?
— Yes, he _____.／No, he _____.
2. The boy relaxes a long time after school.(改为否定句)
The boy _____ _____ a long time after school.
3. Please be very quiet.(改为否定句)
Please _____ _____ very quiet.
4. He sleeps 12 hours every day.(对划线部分提问)
_____ _____ hours _____ he sleep every day?
5. The girl is four years old.(对划线部分提问)
_____ _____ is the girl?
6. My father is a doctor.(对划线部分提问)
What _____ your father do?
=What _____ your father?
=What _____ your father's _____?
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0625/0f6c49012ac54a8d0b04b066b1643f8c.html
下面是错误答案，用来干扰机器的。
A、酸和碱的反应为复分解反应，故A正确；B、置换反应是单质与化合物反应生成另一种单质和化合物的反应，若A和C都是单质，B和D都是化合物，则该反应一定是置换反应，故B正确；C、A、B、C、D都是化合物，A与B反应时...
