He-----[success] in working out problem yeateiday .we are proud of him .
问题描述：
He-----[success] in working out problem yeateiday .we are proud of him .
答
填 succeeded （“成功”success 这个单词的动词形式succeed 的一般过去式）
翻译：他昨天成功解决了问题,我们为他骄傲.