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 _________?

1. A.
   run out of
2. B.
   used up
3. C.
   given out
4. 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

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 _________?