_________ around our school campus, the visiting teachers from other schools were led to our meeting room.
___________ you've got a chance, you might as well make full use of it.
--Why has he been staying at home these days? --He ___________ since a month ago.
I just don't understand_____________ that prevents so many Americans from being as happy as one might expect.
The president of the country was well______ of when he was in power.
The gas tank____________ twenty gallons of gas, but now it may____________ only three gallons.