从下列每组所给单词中选出划线部分读音不同于其他3个的选项

(1)A.have B.math d
C.salad D.dance 划a
(2)A.spell B.he b
C.ten D.seven 划e
(3)A.swim B.bike a
C.five D.violin 划i
(4)A.not B.clock c
C.gold D.violin 划o
(5)A.cup B.run a
C.drum D.musician 划u
(6)A.soon B.look a
C.book D.good 划oo
(7)A.that B.contact c
C.grade D.act 划a
(8)A.movie B.also a
C.photo D.go 划o
(9)A.trousers B.young b
C.blouse D.discount 划ou
(10)A.desk B.next d
C.bed D.behind 划e
(11)A.teacher B.speech b
C.Chinese D.chorus 划ch
(12)A.think B.thriller b
C.father D.thirty 划th
(13)A.goodbye B.book c
C.food D.football 划oo
(14)A.uncle B.under d
C.fun D.difficult 划u
(15)A.do B.movie h
C.homework D.who 划o
(16)A.science B.big b
C.nice D.library 划i
(17)A.want B.can a
C.Japanese D.piano 划a
(18)A.history B.swim c
C.science D.sing 划i
(19)A.why B.who d
C.when D.what 划wh
(20)A.eraser B.Japanese b
C.favorite D.bookcase 划a