We have not heard anything ____ you, and our patience has just r

We have not heard anything ____ you, and our patience has just run______
【正确答案】：from, out
【题目解析】：[考点点击】本题主要考查的知识点为有关介词的搭配。【要点透析】hear from表示“收到（某人）来信”；run out表示“用完，耗尽”。