The massacres __________ in Christchurch several weeks ago shocked the whole world. __________ from criticism from all sides for days, New Zealand decided to impose a ban on assault weapons.
A: happening; Having been suffered
B: that happened; Having suffered
C: that happened; Suffering
D: happening; Having suffered
求助各位朋友,帮忙看下这道题选什么,给的答案是D选项,但我感觉B选项应该也没问题,主要问题集中在第一个空,请各位师友帮忙看看这题是不是出的有问题
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