单选题 (Looking through the window) at all the cars on the road, (the traffic) (was getting) much (heavier) than it had been an hour ago.
  • A. Looking through the window
  • B. the traffic
  • C. was getting
  • D. heavier


【正确答案】 B
【答案解析】[分析] 分词looking的逻辑主语应该是人，而非the traffic。改“the traffic”为“John saw that the traffic”。