Recently we held a discussion about what
问题:
Recently we held a discussion about what we shall use for power when all the oil in the world has _________?
A.run out of
B.used up
C.given out
D.put out
Recently we held a discussion about what we shall use for power when all the oil in the world has _________?
A.run out of
B.used up
C.given out
D.put out