题目

用方框中所给单词的适当形式填空，是短文意思正确，通顺。每词限用一次。（5分）  without,give, cause, learn, care, smoke, vegetable, you, health, play    Ways to keep healthy   You need to have  87eating habits. Breakfast 88you enough energy for the morning. So don’t go to school   89 it. Fruit and   90are good for your health. 91 sports can also help you keep fit. But sometimes it may      92  accidents, so you must be 93when you are playing sports. It’s necessary   94   about first aid.Then you can help    95 or others if an ac14．原子核外价电子排布式为 3d54s2的元素是（　　）A．CrB．ds 区元素C．ⅡA族元素D．ⅦB族元素