Linda felt someone on her way home from work yesterday evening, and therefore she was frightened and looked back from time to time.
A. followed
B. would follow
C. had followed
D. was following
网友回答
A. followed
B. would follow
C. had followed
(答案→)D. was following
解析：D 考察动词时态。句意：琳达昨天晚上在下班的路上感觉打一直有人跟着她，因此她十分害怕，不时回头去看。根据语境可知此处强调过去某一时间一直在发生的事情，使用过去进行时。故D正确。