王老师:19139051760(拨打)复制微信 题目 更新时间:2023/4/3 The boy ______ . Spanish for six years by the time he takes his examination.A、 has studiesB、 will have studiedC、 has been studyingD、 had studied 答案 登录 注册 正确答案为:B 出自:石家庄铁道大学 >> 石家庄铁道大学-大学英语3 石家庄铁道大学继续教育学院