王老师:19139051760(拨打)复制微信 题目 更新时间:2023/4/3 The enormous amount of waste that is produced by fast-food chains is a big problem.The enormous amount of waste____by fast-food chains is a big problem. 答案 登录 注册 正确答案是:produced 出自:国家开放大学 >> 国家开放大学-开放英语4 999继续教育学院