问题 更新时间2023/4/3 12:59:00 The boy ______ . Spanish for six years by the time he takes his examination. A、 has studies B、 will have studied C、 has been studying D、 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1