SummarizationRead each of the following short paragraphs and complete the phrase or sentence that expresses the main idea of the paragraph. The first letter of the missing word is given be fore the blank.2. Only this year I witnessed what might have been a fatal accident on the No. 5 highroad. I was motoring up from the town and I came upon the wreckage of two cars on the road. The smash had been caused by a car coming down, which swept round a sharp corner at100km/h and crashed into a car coming up.I witnessed an a______.
【正确答案】：accident
【题目解析】：P51
