选择填空。

— How do you like the book? 

— ______. [ ]

A．No, it's an old book.

B．Yes, I saw it.

C．It's interesting.

D．It's new.

If heavy smoke is coming from the paint locker,the first firefighting response should be to（）.

A.release the CO fiooding system

B.open the door to evaluate of the fire

C.enter and use a portable extinguisher

D.secure the ventilation