问题 更新时间2024/8/8 19:15:00 If they _____ the hole in the sidewalk, this accident_____.A.fix; will be avoidedB.fix; was avoidedC.had fixed; could have been avoidedD.have fixed; has been avoided 答案 登录 注册 C 出自:国家开放大学 >> 国家开放大学英语语法