题目内容：

Choose the word whose underlined part has a different pronunciation.

1.A. suddenly    B. sunny    C. sugar    D. summer

2.A. thank    B. fence    C. under    D. twins

3.A. through    B. naughty    C. right    D. laugh

4.A. country    B. count    C. hour    D. mountain

5.A. cupboard    B. open    C. toothpaste    D. hopscotch

6.A. glasses    B. tomatoes    C. actresses    D. torches

7.A. window    B. flower    C. how    D. towel

8.A. heavy    B. meat    C. breakfast    D. weather

9.A. mouths    B. season    C. perhaps    D. pencils

10.A. north    B. world    C. orange    D. born