题目

用括号中所给词语的适当形式填空【1】It is _____________ (terrible) cold today. Please put on your coat.【2】_____________ (learn) English well isn’t easy. Do you think so?【3】All the posters need _____________ (put) up on the wall.【4】In order to stay _____________ (health), you should eat more vegetables and less junk food.【5】Did you have fun _____________ (make) so many posters.【6】I think things are getting _____________ (bad) than before. What do you think of it?【7】The doctor has saved many people’s _____________ (life) after earthquake.【8】You are方程2x2-5x+2=0的两个根可分别作为（　　）A．一椭圆和一双曲线的离心率B．两抛物线的离心率C．一椭圆和一抛物线的离心率D．两椭圆的离心率