王老师:19139051760(拨打)复制微信 题目 更新时间:2023/4/3 In Costa Rica, boys and girls between seven and fourteen ______.( )(本题2.5分) A、 do not have to go to school at all B、 study in the same school C、 must go to school D、 can choose to stop schooling at any time 答案 登录 注册 标准答案:C 出自:青书学堂 >> 西安石油大学-石油工程技术-大学英语I(上) 西安石油大学继续教育学院