单选题 . 
4.  Where is this event being held?______
【正确答案】 A
【答案解析】[听力原文]
   M: Ladies and gentlemen, I'd like to welcome you this evening for the inauguration of the Messinger Cancer Wing of Children's Hospital. It is my pleasure to introduce our honored patron, Mr. Martin Messinger. Mr. Messinger, as many of you know, is the founder and executive director of the Panacea Foundation, which provides important funding for cancer research. It was through the Foundation's tremendous generosity that we will be able to more effectively treat and hopefully cure children who suffer from this terrible disease. Mr. Messinger holds Children's Hospital in especially high esteem, as it was at this hospital that his two children, Kate and Colby, were born. So without further ado, would you please welcome Mr. Martin Messinger.
选项A正确,这段讲话发表在儿童医院Messinger癌症中心的落成典礼上,可知情境是医院。选项B、C和D均未提及,也未暗示。