找出类别与众不同的单词。
(1)A. summer    B. spring      C. autumn     D. palace
(2)A. heart     B. star       C. shoe       D. circle
(3)A. shoe      B. shirt      C. sweater    D. rectangle
(4)A. ask       B. tell       C. speak      D. rainy
(5)A. drum      B. violin      C. flute      D. dress