听力原文: The government of Canada intends to recall its ambassador from Iran to protest the abrupt end of a murder trial. An Iranian intelligence agent was on trial for the killing last year of a Canadian-Iranian journalist. Canadian Foreign Minister Bill Graham said Sunday's decision by a Teheran court to end the trial is as he put it a denial of justice. Last week, Canada recalled its ambassador to protest Iran's refusal to allow observers at the trial. Canada will call back its ambassador because the Teheran court ______.