The speech which he made ______ the project has bothered me.A being concerned B concerned C be concerned D concerning麻烦帮我解释一下选择的理由，谢谢！
热心网友
分析下：which he made concerning the project做定语修饰the speech, concerning 在这里是“关于”的意思。整个句子的意思是：他所做的关于工程的那个演讲使我感到厌烦。
热心网友
D这是插入语，且是主动语态
热心网友
A IS RIGHT?