问题 更新时间2023/4/3 12:59:00 9. -Oh, thank you. I __________ how to do it.(本题2.0分) A、 had wondered B、 would wonder C、 was wondering D、 did wonder 答案 登录 注册 标准答案:C 出自:青书学堂 >> 东北林业大学-大学英语3