comparatives and superlatives

Which is correct? This is the biggest cake / This is biggest cake

What is the superlative of fast?

Which is correct? This book is more interesting than that one / This book is interestinger than that one

Complete: Today is ______ than yesterday.

Superlative of long

Which is correct? Maria is taller than Ana / Maria is more tall than Ana

Complete: My car is ______ than yours.

What is the comparative of tall?

Which is correct? Peter is the most intelligent / Peter is most intelligent

Which is correct? This is the most beautiful beach / This is most beautiful beach

Complete: Tom is ______ student in the class. (young)