Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
Câu 1:
A. unselfish
B. sympathy
C. quality
D. principle
Câu 2:
A. introduce
B. entertain
C. successful
D. millionaire
A.
B.
C.
D.