请找出不同类的单词，将其序号填入前边括号里。
(1)A.monkey        B.short     C.long
(2)A.eye           B.small     C.ear
(3)A.seven        B.two      C.tail
(4)A.Mr           B.Miss      C.USA
(5)A.hand          B.bag       C.arm
(6)A.dad           B.mum       C.student
(7)A.elephant      B.dog       C.teacher
(8)A.pig           B.big       C.fat
(9)A.cat           B.fat       C.bird
(10)A.brother     B.sister    C.long