Mexico City is ______ ______ ______ Zurich. (Polluted)
Mexico City is MORE POLLUTED THAN Zurich.
Machu Picchu is one of ______ ______ ______ in the world! (Beautiful)
Machu Picchu is one of THE MOST BEAUTIFUL places in the world.
Is Barcelona _______ _______ Madrid? (Small)
Is Barcelona SMALLER THAN Madrid?