Réponse :
Bonjour,
a) The USA is one of the biggest countries in the world.
b) This the best destination ever.
c) Yale is one of the most popular universities in the world.
d) New York may be the busiest city in the world.
e) The USA is the most extraordinary country I have ever visited.
Explications :
Attention les adjectifs de deux syllabes qui finissent par "y" fonctionnent comme les adjectifs courts. Le "y" devient "i"