王老师:19139051760(拨打)复制微信 题目 更新时间:2023/4/3 15.(4分)Mother dropped the glass ________ she was standing up from her seat. A. while asked B. Asked C. asking D. while asking 答案 登录 注册 答案D 出自:其他 >> 兰州大学大学英语4 兰州大学继续教育学院