单选题 The speaker did not mention many facts, so we asked him to be more ______.
【正确答案】 A
【答案解析】specific: 确切的, 详细的; special: 特别的, 专门的; particular: 特指的, 特殊的; respective: 各自的, 分别的。 本题句意是“让说话人说确切一点”, 故选A。