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

Exercise 1: Choose the word whose underlined part is pronounced differently from the
others.
1. A. centre B. kid C. encourage D. colour
2. A. chemistry B. school C. mechanic D. charity
3. A. tutor B. volunteer C. student D. community
4. A. graffiti B. garage C. general D. globe
5. A. provide B. donate C. program D. clothes

Exercise 2: Choose the odd one out.
1. A. donate B. program C. service D. member
2. A. sick children B. volunteer C. homeless people D. disabled people
3. A. donating clothes B. cleaning streets C. providing food D. playing games
4. A. homeless B. sick C. street D. disabled
5. A. volunteer B. graffiti C. donor D. contributor