Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
When he refused to talk, the soldiers （ ） to kill him. (threat)
【正确答案】：THREATENED
【题目解析】：
根据前文when...，可知逗号后面为主句，the soldiers为主句的主语，主句缺谓语动词，所以空格处要填动词的形式，treat的动词形式为threaten威胁，且根据前文的从句时态，主句也应该为过去时，填treatened。句意：当他拒绝说话时，士兵们就威胁要杀了他。