题目

---I fell down and hurt my legs just now because the road was too wet.---__________.A.It doesn’t matter. B.That’s OK.C.Nothing serious. D.I am sorry to hear that. 答案：【答案】D【解析】句意：——刚才我摔倒了，伤了腿，因为路太湿了。——听到这感到很难过。A. It doesn’t matter.没关系； B. That’s OK.没关系，不用谢；C. Nothing serious. 没什么严重的；D. I am sorry to hear that.听到这个很难过。根据上文I fell down and hurt my legs just now because the road was too wet.可知下文是说听到这解方程：(3x2x+2)2+6x2x+2-15=0．