Exercise 7: learner, cooker, degree, market

Exercise 7. Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position  of primary stress in each of the following questions.  
6. 
A. learner 
B. cooker 
C. degree 
D. market 
7. 
A. preserve 
B. measure 
C. sustain 
D. promote 
8. 
A. citadel 
B. container 
C. appointment 
D. relation 
9. 
A. responsible 
B. vocational 
C. renewable 
D. independent 
10. 
A. motivate 
B. graduate 
C. volunteer 
D. operate 

Đáp án:

6. C

7. B

8. A

9. D

10. C