I should apologize to you for failing to visit you last week, but I've been very busy the past few months.
A. since
B. before
C. among
D. over
网友回答
A. since
B. before
C. among
(答案→)D. over
解析：
试题分析:考查介词辨析。A 自从， 既然；B在……之前；C 在……之中；D 在。。。期间，多于，超过。固定短语：over the past few years，在过去的几年里。句意：因为上周没能够去拜访你我应该向你道歉，不过在过去的几个月里我一直很忙。正确选项D。