单选What should we use for power when all the oil in the world has ___?a.run out of b.used up c.given out d.given off
问题描述：
单选What should we use for power when all the oil in the world has ___?
a.run out of b.used up c.given out d.given off
答
C
has given out= has run out= has been used up 被用完