Здравствуйте, подскажите пожалуйста.
Раскройте скобки, употребляя требующуюся форму прилагательного:
1. Their new car is (economical) than the old one.

2. Boys are always (noisy) than girls.

3. Summer is the (warm) of the four seasons.

4. What (good) present is there than a box of cigarettes?

5. This wonderful hotel is as (expensive) as the Ritz.