Exercise 1: Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation.
1. A. life B. sofa C. laugh D. night
2. A. avoid B. leave C. left D. of
3. A. bought B. food C. photo D. telephone
4. A. nurse B.picture C. surf D. Thursday
5. A. affect B. amazing C. maturity D. acne
6. A. yoga B. teenager C. donate D. games
7. A. started B. helped C. needed D. visited
8. A. invited B. loved C. used D. cleaned
9. A. lived B. talked C. watered D. opened
10. A. worried B. donated C. collected D. naked
