新东方赵丽词汇课堂 Lesson 113
时间：2018-12-15 作者：英语课 分类：新东方赵丽词汇课堂
英语课
23. We have taken all the ____ we can against the painting being stolen.
A. precautions B. admissions C. concessions D. transactions
precaution 预防措施，警惕
caution 警告