Bonjour,

Réponse :

1. This neighbourhood is becoming more and more animated.

2. Architects want to build higher and higher buildings.

3. Living in the city is now more and more expensive.

4. American suburbs are cleaner and cleaner.

5. Cities want safer and safer pedestrian areas.

6. In order to reduce traffic, the parking spaces are narrower and narrower

7. As a result, there are fewer and fewer cars.

8. What city-dwellers want is a more and more attractive city.

9. They reject the idea of a more and more bustling city life.

10. Cities have grown into bigger and bigger metropolis.

Explications :

Le double comparatif correspond à « de plus en plus … » en français.

- Adjectifs courts ( adjectifs de 1 syllable et de 2 syllabes qui finissent par « y », « er », « ow »  « le" ):  

         ======>     adjectif-er + and + adjectif-er

- Adjectifs longs : more and more + adjectif

;)