When there is a fire, we can witha blanket.A．put it off

(2013 ·辽宁五校第一联合体高三考试)It is universally believed that a student with an extremely ________ mind usually gets high scores in the exams, especially in the physics exam.

I’m _____, but Tom isn’t. His books are everywhere.

Ben needs a new jacket to keep ________the cold.

There are three in the office.