因为这个空是原因状语不是谓语.所以这个空一定要用非谓语动词的形式,所以not recieved只能是过去分词,但此空不表示被动而表示主动,即主语he 是动词receive的发出者所以用现在分词,且用完成式表示这一动作发生在write之前.你的理解是谓语,那样就把句子变为Because he had not received a reply,,moved by her words, the old man agreed to her request.这句是对的，我觉得这和题一样的，究竟怎么回事呀？求助(he was)moved by her words, the old man agreed to her request.(he has)not recieved a reply ,he decided to(he was)moved by her words, the old man agreed to her request.(he has)not recieved a reply ,he decided to这两句前都得加上because句子才成立，因为英语中不能把两个简单分词只用逗号隔开。要有主从关系。或写在非谓语形式如这两道题。