2009 上海 第 32 题 单选题 区分题 2009_上海卷 32. A32. You can’t borrow books from the school library $\_\_\_\_\_\_$ you get your student card. A. beforeB. ifC. whileD. as 参考答案A ☆ 收藏不会，直接看解析查看原卷 →