There′s been a whole ________ of accidents on this road.

There′s been a whole ________ of accidents on this road.
A、variety
B、bunch
C、set
D、series
【正确答案】：D
【题目解析】：variety n多样；bunch 群；set 一套一组；series系列；句意：这条路上发生了一连串的交通事故。因此D符合题意。