Stand over there ___ you’ll be able to see the oil painting better.
A.but B.till C.and D.or
As there is less and less coal and oil, scientists are exploring new ways of making use of _____ energy, such as sunlight, wind and water for power and fuel.
A.primary B.instant C.unique D.alternative
Try ____ he might, he failed to put it off.
A.although B.as C.unless D.if
__ that's important is that you are doing your best and moving in the right direction.
A.One B.All C.Everything D.Anything
Astronauts who are accustomed _____ views that you and I cannot really describe were moved _____ tears when they looked out the windows of the spacecraft for the first time.
A.in, by B.from, by C.to, to D.with, to
Eric, ____ yourself. Did you forget the school rules?
A.behalf B.believe C.behave D.betray
