Exercise 3: Choose the word whose underlined part is pronounced differently.
1: A. silk B. gold C. film D. half
2: A. help B. wolf C. talk D. child
3: A. shelf B. field C. hulk D. calm
4: A. great B. bring C. iron D. write
5: A. hint B. hug C. heat D. hour
6: A. heir B. hold C. hush D. hat
7: A. honest B. hiccup C. hallo D. husband
8: A. helpful B. vehicle C. honour D. exhaust