Superlative and Comparative

Denmark is one of (a)   (safe) countries in Europe.

Asia is (a)   (large) continent in the world.

I think the Eiffel Tower is (a)   (beautiful) landmark in France.

Africa is (a)   (poor) continent of the seven continents in the world.

Which city is (a)   (big) city in Britain?

This road is (a)   (narrow) road in the city

Football is (a)   (common) sport in my country.

Beef noodle soup is (a)   (delicious) food I have ever tasted.

(a)   (expensive) city in the world is Tokyo. People need a lot of money to live there.

Who is (a)   (noisy) student in your class?