1. Once a species becomes _______, nothing can be done to bring it back to life again.
A. rare B. dangerous C. extinct D. precious
2. — We lost the game at the last moment.
— _______ But at least you have entered the next round.
A. So what? B. It’s a pity. C. It’s OK. D. Oh, go ahead.
3. Winning such a game _______ more than skills and courage. It needs luck, too.
A. focuses B. displays C. includes D. involves