【题目】It's high time we ______ effective ______ to improve your working conditions.
A.take ; means
B.made; measures
C.took; measures
D.do, actions

【答案】C
【解析】考查固定词组和虚拟语气。句意：是我们采取措施来提高那么的工作条件的时候了。固定词组take measures采取措施；固定句型：It is time that sb 过去时/should+动词原形，构成虚拟语气，故选C项。