1. A. costly                   B. fastener                  C. portable                  D. smartphone

2. A. determine           B. profile                     C. science                    D. versatile

3. A. benefit                B. generous                 C. inventor                  D. video

4. A. fabric                  B. iminate                   C. laptop                      D. patent

5. A. company             B. compose                 C. comprise                 D. computer

Exercise 2. Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.

6. A. hot tea                B. phone call               C. soft ware                 D. tall boy

7. A. bus stop               B. cell phone               C. light bulb                 D. white board

8. A. flying car             B. mother tongue        C. online game            D. pencil case

9. A. fire fighter          B. heart attack                        C. self interest             D. train station

10. A. credit card        B. football match        C. living room             D. swimming pool