Choose the word which has the underlined part pronounced differently from the rest

1 , choose the word which has the underlined part pronounced differently from the rest :

1, A.head     B.break     C.bread     D.heavy   

2, A.said     B.wait     C.mail     D. sail  

3, A.receive     B.score     C.scout     D.comics

4, A.touched     B.laughed     C.talked     D.rented

5, A.plays     B.looks     C.wants     D.helps
giúp mik với ạ !