fire, all exits must be kept clear.
A. In place of
B. Instead of
C. In case of
D. In spite of
网友回答
A. In place of
B. Instead of
(答案→)C. In case of
D. In spite of
解析：考查固定词组，In place of意思“代替”，Instead of意思“代替”，In case of意思“万一”，In spite of意思“尽管”，句子意思“万一有火，所有的出口必须被保持清晰”