题目

I don’t think he could have done such a stupid thing last night, _____? A. did he          B. could he         C. do I               D. hasn’t he   答案：AI think + 从句的反意疑问句根据宾语从句确定。could在此表示揣测，应变为he did such a stupid thing last night来考虑。         ____________（会议）实际上确立了以邓.小平为核心的第二代领导集体；____________ （会议）形成了以江Z民为核心的第三代领导集体。