---Did you enjoy staying with your good friend last week,Lily?

---Yes, I______ with him for a long time.

A．haven’t stayed

B．didn’t stay

C．wouldn’t stay

D．hadn’t stayed

52度的白酒库房的火灾危险性应划为（）。

A、甲类

B、乙类

C、丙类

D、丁类