21. I am wondering if there is__ site where I can find ___latest news about Shanghai World Expo.
A. a; a B. the; a C. a; the D. the; the
22. The total cost of their trip to Canada ________ $5,000.
A．added up to B．added up C．added to D．was added up to
23. Everybody，come on！Join us and keep fit！Our slogan is that ____ you are，______ you are!
A．healthier；wealthier B．the healthier；the wealthier
C．healthy； wealthy D．the more healthy；the more wealthy
