Can you tell me __to talk to and ___to get help when we have problems

The reason ____he was late was ____he had taken a wrong bus.

Has he changed his mind?—Yes. After some hours of discussion, I ____ to talk him into accepting the new plan.

Look! Everything here is under construction— What’s the pretty small house that ______ for?

It turned out that she won the first prize in the competition, which was beyond her .