People are _________the use of alternative energy sources. Because the fossil fuels _________will be used sooner or later.
—John, look at the time. _____ you play the piano at such a late hour? —Oh, sorry.
—Shall I give you a lift as you live so far away? —Thank you. ______.
Going on a trip into _____ space must be quite _____ exciting experience.
character
drown