Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following 
Câu 1: 
         
         A. parameter             
         
         B. speedometer  
         
         C. thermometer
         
         D. conscious
Câu 2: 
         
         A. production              
         
         B. deficient
         
         C. ancient 
         
         D. sufficient
Câu 3: 
         
         A. endangered             
         
         B. humidity 
         
         C. necessary
         
         D. incredible
Câu 4: 
         
         A. secretary              
         
         B. necessary 
         
         C. classifies  
         
         D. vocabulary
Câu 5: 
         
         A. biology            
         
         B. accordance 
         
         C. incomplete   
         
         D. pudicity
A.
B.
C.
D.