烟花爆竹危险品总仓库区运输危险品的主干道中心线与各级危险性建筑物的距离最小为（）m。
A、10
B、8
C、5
参考答案：A
句型转换。
1. The Spring Festival is usually in February. (对画线部分提问)
_____________________________________________________________
2. I have some flour. (改为否定句)
3. He's wearing a red shirt. (对画线部分提问)
4. Beef comes from cows. (对画线部分提问)
5. I can clean the ceiling. (改为一般疑问句)
6. I'm going to fly a kite. (对画线部分提问)
— _____________ you _____________ your homework last evening?
— Yes. [ ]
A. Did; do
B. Do; do
C. Do; did
D. Did; did
