I. PRONUNCIATION
A. Choose the word which has the underlined part pronounced differently from the rest.
1. a. language b. package c. mathematics d. marvelous
2. a. chemistry b. prepare c. receive d. degree
3. a. private b. diploma c. guide d. writer
4. a. trouble b. study c. tutor d. subject
5. a. received b. worked c. obtained d. harbored
B. Choose the word whose main stress is placed differently from the others
1. a. background b. career c. secondary d. private
2. a. scientific b. atomic c. impossible d. professor
3. a. obtain b. determine c. award d. harbour
4. a. ambitious b. difficulty c. brilliant d. mature
5. a. education b. difficulty c. champion d. institute