Form the comparative or superlative degrees of the
adjectives in brackets.

1.    
Which is
(large)_______________: the USA
or Canada?

2.    
Moscow is the (large)
_______________city in Russia.

3.    
The London underground is the
(old)______________in the world.

4.    
St. Petersburg is one of the (beautiful)_____________cities in the
world.

5.    
The rivers in America are much (big) _____________than those
in England.

6.    
What is the name
of the (high)_____________mountain in Asia?

7.    
The English
Channel is (wide)_____________than the straits of Gibraltar.

8.    
The island of Great Britain
is (small)______________than Greenland.

9.    
What is the name
of the (big)_____________port in the United States?

 This fact is
(important)_______________than that one.