Comparative vs superlative form

It's better ____ I thought.

• as

• then

• than

• like

Brazil is _____ England.

• biger than

• bigger as

• bigger than

• biger as

She is _____ in the class

• the best

• best

• better than

• as good as

It was ______ expensive restaurant I've ever been to.

• more

• the more

• most

• the most

It's ____ art collection in Europe.

• finer

• the finest

• the finer

• finest

It was ____ than I was expecting.

• cheaper

• cheapest

• Either one can be used here

This is the ______ kitchen I've ever seen.

• dirtyest

• dirtiest

• dirtyer

• dirtier

The underground is ____ buses.

• more expensive

• most expensive

• the most expensive

• more expensive than

It was ____ test I have ever done.

• the most hard

• the hardest

Which is ____ of the two?

• more difficult

• most difficult