根据句意，用括号内所给单词的适当形式填空。
(1)I couldn't tell others my ____ (excite) feeling in my heart.
(2)On their way home, they bought ____ (they) something to eat.
(3)You always answer the questions____ (correct) in class, so you should listen carefully and make fewer mistakes next time.
(4)The food your mother cooks is ____ (taste) than that my mother does.