1. Van doesn’t work as hard as Lan => Lan ………………………….

2. Ms. Loan doesn’t cook as well as my mother ……………………..

3. Thanh is taller than Nam => Nam isn’t ……………………………

4. Her dress is cheaper than mine =>  My dress isn’t ………………..

5. Girls are  more careful than boys => Boys  aren’t………………..

6. You are happier than  those orphans => Those orphans aren’t….

7. The mountain is higher than the hill => The hill isn’t …………..

8. The house was more expensive than he thought it would be =>The house wasn’t ………………………………………………………….

9. Computer system used to be more expensive than they are now => Computer system are ………………………………………………………

10. My grandfather is younger than yours  => your grandfather is…………..  => your grandfather  isn’t....……………………………………………    

1He is an  energetic outdoor participant.
→ He……………………………………………………………….
2My mom always takes pride in me.
→ She is always …………………………………………………….
3.  We like smelling roses.
→ We are …………………………………………………………..

The citizens understand the important trees and plants in their lives

1. Van doesn’t work as hard as Lan => Lan ………………………….

2. Ms. Loan doesn’t cook as well as my mother ……………………..

3. Thanh is taller than Nam => Nam isn’t ……………………………

4. Her dress is cheaper than mine =>  My dress isn’t ………………..

5. Girls are  more careful than boys => Boys  aren’t………………..

6. You are happier than  those orphans => Those orphans aren’t….

7. The mountain is higher than the hill => The hill isn’t …………..

8. The house was more expensive than he thought it would be =>The house wasn’t ………………………………………………………….

9. Computer system used to be more expensive than they are now => Computer system are ………………………………………………………

10. My grandfather is younger than yours  => your grandfather is…………..  => your grandfather  isn’t....……………………………………………    

11. My sister dances more beautifully than Daisy =>Daisy doesn’t ……….

12. Ha studies better than  Hai => Hai doesn’t ……………………………

13. Helen play the piano better than Elizabeth => Elizabeth doesn’t ……..

14. Nam runs faster than Ba =>Ba doesn’t ……………………………….

15. Sandra spent more money than Susan => Susan doesn’t ……………

16. Nam drives more carefully  than Tuan => Tuan doesn’t …………….

17. Thanh spoke English faster than Vinh => Vinh didn’t ………………

18. They go to the library more frequently than their friends => Their friends………………………………………………………………….

19. Mai travels more than Van => Van  doesn’t ………………………….

20. Hoa speaks more persuasively than Has => Ha doesn’t ………………

21. Tuan didn’t get as many medals as Lan => Lan got ……………………

22. That players has scored more goals than you => You haven’t got ……………………………………………………………………………

23. Mai is  a better cook than Lan => Lan isn’t …………………………   =>Lan can’t………………………………………………………………

24. Linh is a faster runner than Mai =>Mai isn’t ………………………… =>Mai doesn’t………………………………………………………….   

III.WORD TENSES :

1.     My sister is busy ………….in the kitchen.( cook)

2.     How long …. the residents……..concerned about the new mall ?  ( be )

3.     She …………….. the English course since last month ( attend )

4.     Would you like ………….. to Jazz music ? ( do )

5.     I …………….. the house since five o’clock.(( lean )

6.     Ba is fond of ……………a new bike. ( buy )

7.     It’s very kind of him …………..me a present. ( give )

8.     This question is easy. Please try your best ………… the answer. ( find )

9.     Our  teacher has just told you ……….. in class. ( not/ talk )

10.                      Ba is badly ill in hospital . His health…………. worse and worse ( become)

11.                      ……….. you ever ……… in Nha Trang ( be )

12.                      He left without …………. anything ( say )

13.                      Computers …………….more important in our life (become)

14.                      The concern…………….at 08.00 tomorrow. ( start )

15.                      What time ………….the FL101 flight ………… tonight ?(depart )

FIND THE MISTAKE AND CORRECT THEM

1.     She became successful since she was in Paris.

2.     Smoking can lead for heart disease .

3.     They are planning raising fund for the poor.

4.     Take this form to your teacher and ask her sign it.

5.     Tam is not as tall as Minh =>Minh ………………………………….

6.     These houses aren’t as large as those ones => those……………….

7.     My friend can not run as fast as Minh => Minh…………………….

8.     Lan doesn’t swim as fast as Hoa => Hoa swims …………………..

9.     Lan doesn’t speak English as well as Mai => Mai …………………

10.          We don’t study as well as they =? They ……………………………

3.that /  he /  left / words / any /  without /  disappointed  /I  / was  / saying/.

……………………………………………………………

4.the /  important /  of /  trees /  the/  citizents / in /  and /  their / lives /  understand /     /plants / in.

……………………………………………………………

5.offers /  more  / the / city / to /  the /  city /  because /  they /  think /   opportunities  / come many / people/

……………………………………………………………

1.     Đốt cháy hoàn toàn 4,6 gam chất hữu cơ A(C_xH_yO_z) cần 7,437 lít (25 ^oC, 1 bar) khí oxygen thu được hỗn hợp khí và hơi gồm cacrbon dioxide và hơi nước.

a.      Viết phương trình hóa học của phản ứng.

b.     Tính khối lượng từng chất trong sản phẩm, biết .

c.      Tính khối lượng của từng nguyên tố có trong chất hữu cơ A.

d.     Tính tỉ lệ n_C:n_H:n_O

e.      Tính tỉ lệ số nt C : số nt H : số nt O

f.       Từ đó, suy ra sự liên hệ gì giữa tỉ lệ số nguyên tử của các nguyên tố ( câu f) với tỉ lệ số mol nguyên tử của các nguyên tố ( câu e)?