24.The accident _______ yesterday was caused by carelessness.

问题描述:

24.The accident _______ yesterday was caused by carelessness.
A.happened B.having happened C.which happened D.happening
为什么不选D

亲.这个题我能告诉你的是,这道题你要我选对的,我ACD都选.选错的倒是容易.
我个人觉得,D现在分词作定语,表主动,很正确啊.
这是啥题目啊.我服了.我英语变差了哈.