单选题 Mr. Wilson said that he did not want to ______ any further responsibilities.
A. take on B. get on C. put up D. took up

【正确答案】 A
【答案解析】take on v.承担(责任等)；get on v.生活，想出，进展；put up v.举起，抬起；look up v.向上看，查找。