John Smith, being a diligent student, never refuses to ______ th

John Smith, being a diligent student, never refuses to ______ the responsibilities that are assigned to him.
A、take in
B、take on
C、take down
D、take off
【正确答案】：B
【题目解析】：take in 吸收；take on 承担；take down 记下；take off 起飞；句意：约翰·史密斯是一个勤奋的学生，他从不拒绝承担分配给他的责任。因此 B符合题意，承担责任。