Long,long time ago,there was a mountain.At the top of the mountain _______ ,in which an old monk used to tell stories.
—Where will you start your work after graduation?—Mum,it's not been decided yet.I ________ continue my study for a higher degree.
—Why do you look so puzzled?—Oh,I ________ over a most difficult maths problem.
—Peter!Let's hurry.The boss is coming.—Oh,I was afraid that we ________ her.
The past two years ________ a sharp rise in oil price,which adds to the burden of auto transportation industry.
—Jack is always studying hard and does well in all subjects. —No wonder he ________ to be admitted to Beijing University.