what __to him yesterday evening 为什么填 happend 而不用was happend

what __to him yesterday evening 为什么填 happend 而不用was happend Do you know what happend to him?为什么用what happend to him? 一个英语填空,一个!what happend ____ him yesterday? what happend? what happend Do you know what happend to him? He was heard_______just now.What happend? what happend是什么意思 what‘s happend 还是 what’s the happend BUT,BUT WHAT HAPPEND是什么意思 what happend with you对么 What is happend over there?