Question 21: Kava dances **the most gracefully** (gracefully) of all the participants. 

Question 22: The curriculum at the public school is as good as or **better** (good) than that of any private school. 

Question 23: He visits his family **more frequently** (frequently) than he used to. 

Question 24: In the UK, the streets are generally **narrower** (narrow) than in the USA. 

Question 25: People in Africa are **the poorest** (poor) in the world. 

Question 26: They are beautiful girls but I think Susie is **the loveliest** (lovely) of the two. 

Question 27: Valencia played **worse** (bad) than Real Madrid yesterday. 

Question 28: Nowadays **many** (many) people are unemployed. 

Question 29: **The harder** (hard) you study for these exams, **the better** (good) marks you will get. 

Question 30: Thanks to the progress of science and technology, our lives have become **better** and **better** (good). 

Question 31: It gets **more** and **more difficult** (difficult) to understand what the professor is explaining. 

Question 32: **The more** (much) he drank, **the more violent** (violent) he became. 

Question 33: Earning money has always been the thing that pleases him most, **the richer** (rich) he becomes, **the happier** (happy) he is. 

Question 34: I can't stand this weather. It's getting **hotter** and **hotter** (hot). 

Question 35: The bigger the supermarket is, the **wider** (wide) the choice is. 

Question 36: Eating and traveling in this city are getting **more expensive** (expensive). 

Question 37: Why don't you buy bananas when they are **less expensive** (little expensive) than apples? 

Question 38: Marine reptiles are among the few creatures that are known to have a possible life span **greater** (great) than that of man. 

Question 39: This one is prettier, but it costs three times **as much** (much) as the other one. 

Question 40: **The more** (much) we learn, the **more** (much) we forget **(more)**.