E-shopping,ifproperly 国语站 题库 1.23W 大中小设置文字大小 问题详情:E-shopping, if properly_____, can save us a lot of time and energy. g B. done C. having done D. being done 【回答】B知识点:非谓语动词题型:选择题 TAG标签:shoppingifproperly #