王老师:19139051760(拨打)复制微信 题目 更新时间:2023/4/3 His father was ______ in thought and did not hear the door open.(本题3.5分) A、 lose B、 lost C、 cost D、 last 答案 登录 注册 标准答案:B 出自:青书学堂 >> 延安大学—大学英语3 延安大学继续教育学院