We think that the duty of the police is to (sure) _that people are protected from crime.怎么填啊急

问题描述:

We think that the duty of the police is to (sure) _that people are protected from crime.
怎么填啊急

be sure

是说用sure的某种形式填么
be sure
如果没有具体要求,我觉得填make sure更好点