Choose the word whose underlined part is pronounced differently from the other three in each question

Choose the word whose underlined part is pronounced differently from the other three in each question.
1. A. curve                    B. stir                        C. person                D. teacher
2. A. number                    B. perfect                 C. termite                D. skirt
3. A. bird                        B. away                    C. answer                D. neighbor
Choose the word which has a different stress pattern from the other three in each question.
4. A. classmate        B. hobby                   C. suggest                    D. painting
5. A. monopoly        B. activity                C. unusually                D. difficulty