找出一个和其它三个不同类的词。(5分)
(1)A.goose B.giraffe C.truck D.frog
(2)A.took B.ate C.gave D.ask
(3)A.modern B.noisy C.wide D.slow
(4)A.toothache B.stomachache C.ill D.headache
(5)A.first B.second C.third D.finally