Mexico City is ______ ______ ______ Zurich. (Polluted)
Mexico City is MORE POLLUTED THAN Zurich.
Machu Picchu is one of ______ ______ ______ city ruins I've ever seen! (Beautiful)
Machu Picchu is one of THE MOST BEAUTIFUL city ruins I've ever seen!
Is Barcelona _______ _______ Madrid? (Small)
Is Barcelona SMALLER THAN Madrid?