选择下列单词中,划线部分发音不同的单词。
(1)A.whale B.wheat C.wheel D.vet
(2)A.mother B.brother C.think D.weather
(3)A.tea B.read C.easy D.sweater
(4)A.fish B.kick C.like D.big
(5)A.cap B.star C.farm D.park
(6)A.girl B.card C.shirt D.nurse