If you thing education is expensive, try ignorance ‘Derek Bok’ ÖZDEYİŞ İLE İLGİLİ TEST VE ALIŞTIRMALAR If you thing education is ..............., try ignorance. . Boşluğa hangi kelime gelemez. (a) expensive (b) unnecessery (c) unimportant (d) crucial (e) useless Next idiom