问题 更新时间2023/4/3 12:59:00 If I had not stood under the ladder to catch you when you fell, you ( ) now. A.couldn.t have smiled B.wouldn.t be smiling C.didn.t smile D.won.t smile 答案 登录 注册 参考答案:B 出自:联大 >> 当代英语语法概论