We must behave ____ at a formal table.

—Must I turn off the gas after cooking ? —Of course . You can never be _______ careful withthat.

I went the village yesterday_________ to see my uncle, who lived there for 20 years.

— Do you think we’ll get somewhere in he future.— I believe it’s quite_____ that we’ll make a difference so long as we work harder.

The workers have produced _______ this year as they did two years ago.