2008 天津 第 49 题 单选题 区分题 2008_天津卷 (英语) 49. The underlined word “it” $in Paragraph 2 refers to _____.$ A. active learningB. knowledgeC. communicationD. passive learning 参考答案D ☆ 收藏不会,直接看解析查看原卷 →