— What do you think I should do?— I think you should call him back ______.
Duty is an act or a course of action that peopleyou to take by social customs, law or religion.
If I find someone who looks like the suspect, my reaction will be to tell the police.
Mistakes don't just happen; they occur for a reason. Find out the reason, and then making the mistake becomes.
. People try to avoid public transportation delays by using their own cars, and this ____ creates further problems.
. It is the test system, _____ the teachers, that is to blame for the heavy burden of middle school students nowadays.