Find the word which has a different sound in the underlined part

PART I. PHONETICS
Exercise 1. Find the word which has a different sound in the underlined part.
1. A. breakfast                        B. brief                                    C. bright                      D. climb
2. A. practice               B. cupboard                C. pray                                    D. plan
3. A. express               B. precious                  C. present                    D. celebrate
4. A. greet                   B. weave                     C. each                                    D. head
5. A. simple                 B. practice                   C. tribal                       D. bridge
Exercise 2. Find the word which has different stress from the others.
1. A. famous               B. common                  C. staple                      D. avoid
2. A. occasion             B. disagree                  C. tradition                  D. expensive
3. A. harmful               B. maintain                  C. lifestyle                   D. freedom
4. A. healthy               B. hurry                       C. online                      D. modern
5. A. improve              B. habit                       C. native                      D. famous