【简答题】According to the Federal Bureau of Investigation, a man seen hanging around the area ( ) the shooting could have been involved in the assassination of the President.
【单选题】The immediate cause was the assassination of the heir Archduke Francis Ferdinand to the throne of Austria-Hungary at _ by a Serb nationalist on 28 June, 1914.
【判断题】In ancient time, the guest was arranged to sit on the left side of the host to prevent the assassination to protect the guest in the western countries.()