分类：教育/科学-外语学习
问题：选择题9？Thedirectorwascritical_____ 
The director was crical _______________ the way we were doing the work.  A) at  B) in  C) of  D) with为什么选C？？？
回答：选C，是习惯用法。
critical adj. 对...... 不满，挑剔的（与of 连用）。