Exercise 2 : Fill in the blanks using “AM, IS, ARE, AM NOT, ISN’T, AREN’T”:

1. It             an onion. (+)

11. New York  ………….. a city. (+)

2. Jasmine             a student. (-)

12. He ……… a postman. (+)

3. We                  friends. (+)

13. It ………. nine o’clock. (+)

4. I ………. hungry. (-)

14. Manhattan …………. an island(đảo). (-)

5. Mark ............. 20 years old. (+)

15. Mr. Richards …… an engineer (+)

6. A bee ……….. a big insect(sâu bọ). (-)

16. I ………..ill. I …………. happy. (+ / -)

7. Newsweek ………… a magazine. (+)

17. London ……….. a big city. (+)

8. I …   . a professional (chuyên nghiệp) football

    player. (-) 

18. Dave and Adrian ………… sisters. They ……..

      brothers. (- / +)     

9. I know you. You ……. in my class. (+)

19. New York ………. near to New Jersey. (+)

10.Cows ……… insects. They ……. 

     mammals(động vật có vú). (- / +)

20. Susan and I ……….. teachers. We ………..

      students. (- / +)