11. Giraffes are __________ (tall) than elephants. * 5 puntos a. tall b. taller c. more taller 12. Cars are __________ (heavy) than bikes. * 5 puntos a. heavyer b. heavier c. more heavy 13. My grandmother is _________ (old) than yours. * 5 puntos a.more old b. older c. oldder 14. John is _________ (good) than Peter in Maths. * 5 puntos a. gooder b. better c. more good 15. January is _______ (cold) than June. * 5 puntos a. colder b. more cold c. cold 16. My sister is _________ (thin) than my brother. * 5 puntos a. thinner b. thin c. more thin 17. My shirt is _________ (colourful) than hers. * 5 puntos a. colorfuler b. more colourful c. more colourfuler 18. Mount Everest is _________ (high) than K2. * 5 puntos a. higher b. high c. more high 19. My girlfriend is _________ (pretty) than Rose. * 5 puntos a. prettyer b. prettier c. more pretty 20. Elephants are _________ (heavy) than giraffes. * 5 puntos a. heavier b. heavyer c. more heavy