____he will go to work in a mountain village surprises all of us.

____________ we can’t get seems better than ____________ we have. 

____is certain is ___prevention is more important than treatment .

 A theme park featuring Hans Christian Andersen’s fairy tales will be built and open to the public in Shanghai during the World Expo, which is ______ on May 1 this year in the city.

—Do you think_____ worthwhile to go all the way to Los Angles to buy that computer?—Well ,I’m going to visit some relatives, too.