Exercise 6: 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.
Question 16.    A. popular    B. reduction    C. romantic    D. financial

Question 17.    A. cover    B. balance    C.

Mn giúp em với ạ!!!

Question 23: If you stick to your guns, you refuse to change what you are saying or doing despite the opposition or criticism of other people.

A. be changeable    B. be persistent    C. be inflexible    D. be constant