Ответ:

Expensive - more expensive- most expensive

Strong- stronger - strongest

Difficult - more difficult-most difficult

Intelligent - more intelligent-most intelligent

Close-closer-closest

Popular-more popular-most popular

Safe- safer-safest

Important-more important-most important

Loud-louder-loudest

Weak- more weak-most weak

Tasty-tastier-tastiest

Comfortable- more comfortable- most comfortable

Delicious- more delicious - most delicious