这三题的答案是?区分duty,obligation,responsibility

题目

这三题的答案是?区分duty,obligation,responsibility
1、Parents have a legal _______ to ensure that their childen are provided with efficient education suitable to their age.
A、duty B、obligation C、responsibility
2、It is my ______ to report it to the police.
A、duty B、obligation C、responsibility
3、He has no _____ for that accident.
A、duty B、obligation C、responsibility

答案