精选优质文档-倾情为你奉上最牛英语口语培训模式:躺在家里练口语,全程外教一对一,三个月畅谈无阻! 洛基英语,免费体验全部在线一对一课程:(报名网址)Directions: The passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C, D. You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Polyester (聚酯 ) is now being used for bottles. ICI, the chemicals and plastics company, believes that it is now beginning to break the grip