(2014·河南南阳联考)Generally speaking，almost all the kids are________about how everything around them works.

Mother was always a bit __________ if we failed to arrive home on time especially on weekends.

Though the situation is rather serious, financial leaders are still ______ about global economy.

The policeman’s _________ traffic directions made all the drivers quite ___________. 

Education in government colleges is very cheap, but if you go to the _____colleges, it is much more expensive.