A、In a church. B、In the street. C、In a shop. D、On a bus. A新闻开头提到，美国警方正在搜捕一名白人持枪者，该罪犯在查尔斯顿城南一个非裔美国人教堂内枪杀了九个人。由此可知，枪杀发生在一个教堂。

　　(3)Police in the United States are searching for a white gunman, who shot dead nine people during a prayer meeting at an African-American church in the southern city of Charleston. From Washington, here is Tom Bakemen. "(4)Officers are now searching for the gunman, who they say was white and in his twenties, and they are treating the attack as a hate crime. The Mayor of Charleston Joseph Riley said it was an unspeakable tragedy. It is the totally large death act that one cannot possibly imagine. And we will bring that person to justice. The police have said they would put all of their energies into finding the man who carried out the attack. "
　　3. Where did the shooting take place?
　　4. What can we learn about the gunman?