Find the word which is pronounced differently in the past underlined

II. Find the word which is pronounced differently in the past underlined.
1.     A. washed     B. needed     C. danced     D. matched
 2.     A. obey     B. key     C. grey     D. survey 
3.    A. played        B. closed        C. filled    D. needed
4.        A. bread                   B. seatbelt                 C. ahead        D. healthy