there‘s no doubt that the past years have seen______of the progress in economy of the country ,

题目

there‘s no doubt that the past years have seen______of the progress in economy of the country ,
theres no doubt that the past years have seen____of the progress in economy of the country ,as more and more people moved into new house
Aimpressions Bviews C signs Dfeatures
选什么,理由

答案

A 印象 B 观点 C迹象 D特色
这题根据句意应该是：毫无疑问过去的几年来看到了这个城市经济增长的迹象.
看到的应该只能是现象,迹象,印象和观点不是看到的.而经济增长不是什么特色.
所以这题选C