单选题 To serve as a role model for the kids, parents have to abide by each of their promises to them.

A、 live up to
B、 date back to
C、 get down to
D、 give rise to

【正确答案】 A

【答案解析】该句意为：要想给孩子做个表率，父母应该信守自己的每一个承诺。abide by：遵守，law-abiding：守法的；live up to：达到，实现；date back to：追溯到……，相当于trace back to…；get down to：开始认真做……；give rise to：引起，引发。