As the clock struck nine, players their positions and the match began.
A. stood up
B. took up
C. made up
D. set up
网友回答
A. stood up
(答案→)B. took up
C. made up
D. set up
解析：考查固定词组，stood up意思“竖立”，took up意思“占去”，made up意思“组成”，set up意思“建立”，句子意思“当九点的时候，运动员站在他们的位置比赛开始了”