Câu 19.      Giá trị của biểu thức  7,5 x 4,5 + 7,5 x 5,5 là: 

a.7,5                             b. 75                   c.0,75                  d. 750

Câu20.      Giá trị của biểu thức  2,7x 4,5 + 2,7x 5,5 là: 

a.2,7                             b. 27                    c.0,27                  d.270

Câu21.      Giá trị của biểu thức  2,7x 3,6+ 6,4 x 2,7  là: 

a.2,7                             b. 27                    c.0,27                  d.270

Câu22.      Giá trị của biểu thức  4,69x 2,81+ 4,69 x 7,19  là: 

a.4,69                           b. 46,9                 c.469                   d. 4690

V. Put the words in the right order : 1. My parents /would like/ you/ to/I/ my sister/ and meet / Shanno. 2. In/ the front seat/ the taxi / of/would/sitting/mind / you. 3. A boy/I/riding/see/can/ a water buffalo. 4. The airport/from/is/traveling/in/a bus/The Jones family. 5. As much/ Mary/ Vietnam/ loves/ by train/ to see/ of/ as possible/ wants/ she/ the country/ and/ to travel. 6. Is/ in / Vietnam/ interested/ John/ the/history/of. 7. Decied/they/ one afternoon,/ to paddle/ in/ Xuan Huong Lake/ a caoe/ around. 8. Soon/ appeared/it/ and/began/raining/ clouds/Unfortunately,/ dark. 9. Fell into/ overtuned/ the canoe/ and/ the/water/ deep/ dangerous /everyone /and. 10. Is/Ba/ a book/ reading/ the/ boy. 11. Five dollars/is/ the/ China/ made/ lamp/old. 12. I/ leave/do/early/you/ mind/ if? 13. Who/have/no/ to help/ the council/ be able / should / families/ accommodation. 14. Broken down/to/ the airport/ the taxi/us/ taken/. 15. Your/you/ would/ if/ borrowed/ mind/I/dictionary?

14. Linda: "Could you turn down the radio, please?"

      Henry: " ………..."

       A. Yes, I can               B. I am, of course        C. I feel sorry          D. Yes, with pleasure

15. Either John or his friends ………….. in the class now.

      A. is                               B. are                             C. were                           D. have been

16. She is wearing a/an …………. ring.

      A. expensive nice gold                                      B. nice gold expensive

      C. gold nice expensive                                      D. nice expensive gold

17. ‘Children in my village often fly their kites in dry rice fields.’ ‘…………..’

      A. It’s right up my street!                                B. That’s awesome.

      C. Exactly what I want.                                    D. How interesting!

18.  Nuclear waste is the pollutant of ……………….

       A. air pollution       B. water pollution       C. radioactive pollution       D. soil pollution

19. If someone...……………. into the store, smile and say, “May I help you?”

      A. comes                    B. came                      C. come                      D. should come

20. She knows that he worked really .................. this semester.

      A. good                      B. hardly                    C. better                     D. hard