I think you should think twice before you make a __________ (决定). 2. A seat belt can help protect passengers in many car __________ (事故). 3.There is a __________ (刀) and some pens on Wang Jun’s desk. 4. Although the policeman died, his great __________ (精神) will always live in our hearts. 5. I have no problem __________ (爬) the mountain, which is not too high.