Exercise 1 : Choose the word with the different sound of -s/es ending.
1. A. proofs B. books C. points D. days
2. A. helps B. laughs C. cooks D. finds
3. A. neighbor B. friends C. relatives D. photographs
4. A. snacks B. follows C. titles D. writers
5. A. streets B. phones C. books D. makes
6. A.cities B. satellites C. series D. workers
7. A. develops B. takes C. laughs D. volumes
8. A. phones B. streets C. books D. makes
9. A. proofs B. regions C. lifts D. rocks
10. involves B. believes C. suggests D. steals