. The young ______ the vital forces in our society.
--- An ant has two stomachs --- one for itself, one for others. --- Really? Quite interesting. I ____ anything about it.
It was ______ the second-hand car that the mechanic spent the whole afternoon in the factory.
To keep Chinese economy going on, the government has established an employment service system for ____ jobless urban residents.
—I’d like to go on a journey to Africa because I can see a lot of wild animals there.—Yes, it’s a region _____ in wildlife.
—Do you think attending training courses is a great help when you look for a new job?—Well, it all depends. _____, it gives me more of a chance to try.