Complete the sentences with the correct adjective form of the adjectives

Complete the sentences with the correct adjective form of the adjectives in brackets .
1.Is it the ____________(high) building in the town?-Yes,it is.
2.The book is___________(interesting) than the film.
3.London is the___________(big) city in Europe.
4.Who is the_______________(good) student in your class?-Tim Brown.
5."Than was the______________(bad) football match in this season," his grandpa said.
6."This portrait is ______________(oid) than the other pictures," the guide said.