Réponse :
exercice 1
- the least beautiful
- the least impressive
- the least tall
- the least expensive
- the least fun
exercice 2
1) The most large/biggest
2) The most famous
3) the most popular
4) the oldest
5) the biggest/the most visited
6) the tallest/the highest
7) the most lively/the most bright
exercice 3
1) the least scary
2) the least famous
3) the least intelligent