Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
Câu 1:
A. A. washed
B. B. missed
C. C. returned
D. D. stopped
Câu 2:
A. A. letters
B. B. groups
C. C. systems
D. D. goods
A.
B.
C.
D.