单选题 When they had finished playing, the children were made to ______ all the toys that they had taken out.
A. put off B. put out C. put up D. put away

【正确答案】 C

【答案解析】[解析] put up“放回原处”，“贮藏在安全的地方”，如：When you have done with the book，please put it up in its place．“书用完请放回原处。”；put off“延期”；put out“伸出，生产”；put away“收起来”，“储存”。