—Whatdoyouthinkofthepresenteconomicsituation?—Whenbigf... 国语站 题库 2.38W 大中小设置文字大小 问题详情: — What do you think of the present economic situation?— When big firms reduce their expenses, we ______ know that times are really hard.A. shall B. couldC. must D. need【回答】A知识点:情态动词题型:选择题 TAG标签:#