__________ that the demand for power continues to rise at the current rate, it will not be long before traditional sources become lacking.
The government promises that relief materials ________ to the flood-hit areas in no time.
—Did you see ________ man in ________ black pass by just now?— No, sir. I was reading a newspaper.
When our ancestors were hunters and gatherers 10,000 years ago, they didn’t have time to wonder much about ________ but finding food.
His wife was busy cooking while he watched TV ________ comfortably in the sofa.
Don’t you think the world would be an easier place to live in, if we all ________ the same language?