The boy was so ________ about net games that he played online over ten hours every day.
The explorers were told to __________ themselves with everything they would need for the voyage.
The old teacher lay wide awake on his bed, __________ all the problems he had to deal with the next day.
—What kind of party is it? Need we __________? —Yes. It's a very formal occasion.
Increase the temperature of the gas and the gas will tend to __________.
He exists __________ bread and water.