找出下面单词中意思不同类的一个,把它的序号写到前面的括号里。
(1)A.tasty B.sour C.thin D.salty
(2)A.bedroom B.closet C.kitchen D.bathroom
(3)A.village B.tree C.flower D.glass
(4)A.in B.old C.on D.under
(5)A.curtain B.trash bin C.fresh D.mirror
(6)A.fish B.tofu C.tomato D.road