When our ancestors were hunters and gatherers 10,000 years ago, they didn’t have time to wonder much about ________ but finding food.
You can't imagine the hard time he had ______ the horse in.
I _____ a novel written by Ernest Heming –ways last night, and another night I’ll finish it.
In such a fierce competition, a person has to make every effort if he ______ .
I ______ with my uncle and aunt because my parents have gone abroad for a holiday.
—Guess what the exam result was. I turned out to be the first !— How nice ! I’m sure you _____ a sleepless night.