Chọn từ phát âm khác từ còn lại :

A. dream B. teacher C. stream D. bread

1. How does mother go to work everyday?

2.Lan often walks to school.

3.Mrs Hoa teaches in a big school in town.

4.My father is a doctor. He travels to the hospital by motorbike.

5.His classes begin at 1.30.

6.Nam usually read books and listens to the radio after school.

7.These are my english books.They are new.

The museum is near the hosppital.

=> Where is the museum?

Yes, there is a hospital in my neighborhood.

=> Is there a hospital in your neighborhood?

Yes, there is a drugstore next to my house.

=> Where does Lan's mother work?

Lan's mother works in a hospital.

=> What does Lan mother work?

Ba's father works in a factory.

=>Where does Ba's father work?

They live in the city.

=> Where do they live?

Minh's house is next to a bookstore.

=> Where do they live?

gọi số cần tìm là x, ta có:

$\left[\left(x-\frac{1}{3}\right)\cdot\frac{1}{6}-\frac{1}{3}\right]\cdot\frac{1}{6}-\frac{1}{3}=\frac{1}{6}$[(x−13 )·16 −13 ]·16 −13 =16 

$\left(\frac{1}{6}x-\frac{1}{18}-\frac{1}{3}\right)\cdot\frac{1}{6}-\frac{1}{3}=\frac{1}{6}$(16 x−118 −13 )·16 −13 =16 

$\frac{1}{36}x-\frac{1}{108}-\frac{1}{18}-\frac{1}{3}-\frac{1}{6}=0$136 x−1108 −118 −13 −16 =0

$\frac{1}{36}x-\frac{61}{108}=0$136 x−61108 =0

$\frac{1}{36}x=\frac{61}{108}$136 x=61108 

$x=\frac{61}{108}:\frac{1}{36}$x=61108 :136 

$x=\frac{61}{3}$x=613 

Vậy số mai nghĩ là 61/3

 Số quả trứng trước khí bán lần ba:               

     0,5 x 2 = 1 (quả)            
Số quả trứng trước khí bán lần hai:   

    (1 + 0,5) x 2 = 3(quả)           

Số quả trứng lúc đầu:                          

   (3 + 0,5) x 2 = 7 (quả)
          

2. a ) Ta có : 3ⁿ⁺² - 2ⁿ⁺² + 3ⁿ - 2ⁿ

= 3ⁿ . 3² - 2ⁿ . 2²  + 3ⁿ - 2ⁿ

= ( 9 . 3ⁿ + 3ⁿ ) - ( 2ⁿ . 2² + 2ⁿ )

3ⁿ .( 9 + 1 ) - 2ⁿ .( 4 + 1 )

= 10 . 3ⁿ - 2ⁿ . 5

= 10 . 3ⁿ - 2^n-1 . 2 . 5

= 10 . 3ⁿ - 2^n-1 . 10

= 10 . ( 3ⁿ - 2^n-1 ) chia hết cho 10 với n thuộc N*

Hoa and Tim are both 13 years old. ( the same ..... as )

=> Tim is the same age as Hoa.

1. Mrs.Mai usually finishes her work at 5 pm.

2. In England, the sun doesn't shine every day.

3. Look! Lan is wearing a new dress.

4. How much are the pens?

5. There isn't any milk in the bottle.

6. Let's go to school.

7. She doesn't want any coffee.

8. We should protect the forests.

9. We didn't do our homework yesterday.

10. Yesterday, I bought some new dress.

Is / Lan / well / getting on / everyone?

=> Is Lan getting on well everyone?

the/midnight/December31/country/ring/at/temples/bells/108/their/over/on/all/times/,/

=> At midnight on December 31, temples all over their country ring their bells 108 times.