---Journalists have to work very quickly in order to .---I know. I like that. It’s very challenging.
—I found the mark rather frightening.—______ It frightened me to death just now.
Mr. Liu is very ______ with his students as he always tries to make his classes lively and interesting.
We're all ready to put it into operation. ______, we're going to take action as fast as possible.
The big snow caused great _______to the people living in the south of China, ________some of them homeless.
Mr. Smith, ______ in the factory for thirty years, is on the way back to his village.