Complete the second sentence so that it has a similar meaning to the first one.

11. My boss let her workers use the tuelephone. ALLOWED

My boss ……………………………………................................... the telephone.

12. The child will die if nobody sends for a doctor. SOMEONE

Unless ……………………………………....................................., the child will die.

13. Do I have to fill in any forms? NECESSARY

Is ……………………………………………................................. to fill in any form?

14. They managed to finish the project in time for the presentation. (SUCCEED)

…………………………………………………………………….

15. Nam said to me, “Why don’t you pay a visit to Green Field Park?” SUGGESTED

Nam …………………………………………………………........ Green Field Park.

Complete the second sentence so that it has a similar meaning to the first one.

6. In spite of not speaking Vietnamese, Mr. Anderson decided to settle in Ha Noi.

Although ……………………………………

7. This film is so interesting that he has seen it twice SUCH.

This ………………………………….. he has seen it twice.

8. Everyone heard about the accident before John’s father did.

John’s father wad the ………………………..

9. The film I saw last week was better than this one. GOOD

This film ……………………………………………..

10. If you don’t know how to spell the world, why don’t you check in the dictionary? UP

Why don’t you ……………………………………… in the dictionary.

Rewrite the following sentences, beginning as shown, so that the meaning stays the same.

1. Jakarta doesn't have as many skyscrapers as Shanghai.

Shanghai ...........................................................................................

2. You forgot to turn off the T. V last night, didn't you?

You didn't remember .......................................................................

3.The countryside doesn't suffer as much pollution as the city.

The countryside ................................................................................

4. I think you should go to work by bike.

Who don't ..........................................................................................?

5. New York has more billionaires than Tokyo.

Tokyo ...............................................................................................

6. We will plant more trees along this street.

More tress ........................................................................................

7. Does overpopulation cause a lot of social problems in this area?

Overpopulation ................................................................................?

8. Is pollution the most serious problem?

Pollution is .......................................................................................?

9. A group of foreigners visited the slums last week , didn't they?

Did ...................................................................................................?

10. Mr. Lam lived in the country when he was a child.

Mr. Lam used....................................................................................

Phân tích:

a) A = x⁴ - 6x³ + 11x² - 6x + 1 thành tích của hai tam thức bậc hai với hệ số nguyên.

b) B = x⁴ - x³ + 2x² - 11x - 5 thành tích của hai tam thức bậc hai với hệ số nguyên và hệ số cao nhất đều mang dấu dương.

Tính nhanh:

a) 1723 - 23³/104 + 127. 2³

b) 66³ + 34³/100 - 66. 34

c) 4³² - 11²/ 36,5² - 27,5²

d) 621² - 769. 373 - 148²