王老师:19139051760(拨打)复制微信 题目 更新时间:2023/8/26 I was worried about my parents all the time, but at last I got the letter I ________ . ( )·had long beeexpecting·were long expecting·had long beeexpected·have long beeexpecting 答案 登录 注册 单选题·had long been expecting 出自:青书学堂 >> 华北水利水电大学英语 华北水利水电大学继续教育学院