Itwastwomonths 国语站 题库 4.08K 大中小设置文字大小 问题详情: It was two months _______ the young man mastered the skill of running the machine introduced from Germany. A. since B. when C. that D. before【回答】解析:选D。句意:两个月后这个年轻人才掌握了*作这台从德国引进的机器的技巧。It was+时间段+before. . . 多长时间后才……。知识点:连词题型:选择题 TAG标签:Itwastwomonths #