Comparative Form
This structure is used to compare two things using i-adjectives in Japanese.
Examples
このりんごはあのりんごよりおいしいです。
This apple is tastier than that apple.
かれはわたしより背がたかいです。
He is taller than me.
この本はあの本より面白い。
This book is more interesting than that book.
Quick check
かれはわたし___背がたかいです。