摘要：21．(山东省东营市胜利一中2010届高三上学期模块考试) - Have you been to the Great Wall? - Perhaps not in my memory. , it might have been during my early childhood. A. If any B. If ever C. If once D. If not 答案 B

网址：http://m.1010jiajiao.com/timu_id_3161603[举报]