Choose the word whose underlined part is pronounced differently from the others

ENGLISH IN USE :
I. Choose the word whose underlined part is pronounced differently from the others.
 1. A. breakfast            B. teacher              C. east                      D. please
 2. A. cooked            B. cleaned             C. played                  D. filled
 3. A. waste B. later C. parade D. gravy
 4. A. washed  B. matched C. danced  D. needed
 5. A. entrance B. mention C. vehicle D. helicopter