Tui nè

Lúc mấy giờ vậy

Hàm bậc 2 với hệ số a < 0 thì đồng biến trên \(\left(-\infty;-\frac{b}{2a}\right)\), nghịch biến trên \(\left(-\frac{b}{2a};+\infty\right)\)

Đồng biến trên \(\left(-\infty;1\right)\)

Nghịch biến trên \(\left(1;+\infty\right)\)

I Love As mobile nhe bạn

as          gao bac          phong can     ................

   hì ko đẹp lắm bạn nha

ok bạn 

1m2dm = 120 cm 

diện tích xung quanh bể cá = 2 x 60 x ( 120 + 80 ) = 24000(cm)

số mét vuông cần dùng là : 24000 + 120 x 80 = 33600 (cm ) = 336 (m)

1. a. father         b. mother         c. this         d. thank

2. a. ten           b. twenty          c. pen         d. he

3. a. five           b. nine            c. window      d. night

4. a. door          b. school          c. stool        d. afternoon

II. Choose the best word or phrase that completes each sentence below:

1. What time does Nga ____________ every morning?

A. gets up        B. get up         C. get         D. gets

2. He ____________ breakfast at six o’clock every morning.

A. have         B. having         C. has         D. to have

3. Our classroom is ____________ the second floor.

A. from         B. in             C. at          D. on

4. How many chairs ____________ there in the house?

A. do           B. is             C. are         D. does

5. – ____________ does Mai live? - At 120 Hung Vuong Street.

A. What        B. When          C. Where       D. Who

6. Minh goes to school ____________ 12.45 every afternoon.

A. in           B. at             C. on          D. to

7. My father is an ____________

A. teacher      B. doctor          C. farmer       D. engineer

8. ____________ is your brother? - He is thirteen.

A. What time      B. How far      C. How old      D. How long

9. What are these? They are ____________

A. book         B. ruler          C. stools         D. eraser

10. What does he do? – ____________ is a doctor.

A. She         B. He           C. You          D. I

11. ____________ thirty students in my class.

A. Is there       B. Are there       C. There is      D. There are

12. What is that? – ____________ is a pen.

A. This         B. They          C. That         D. These

III. Matching the column A with the right answer in column B.

IV. Read the passage and do the exercises.

Nam is a student. He is twelve years old. His father is a doctor. He is forty years old. His mother is a teacher. She is thirty six years old. He has a brother and a sister. His brother is an engineer. He is twenty years old. His sister is a student. She is fifteen.

A. True (T) or False (T).

Statements                         True or False

1. Nam is twelve years old.          ____________
2. Nam’s father isn’t a doctor.        ____________
3. Nam has a brother.              ____________
4. His sister is fifty.                ____________

B. Answer the questions.

1. What does Nam’s mother do?

.......................................................................................................................

2. How many people are there in Nam’s family?

.......................................................................................................................

V. Make the questions.

1 ................................................................................................................... ?

His name is Hung.

2 .................................................................................................................... ?

She is 12 years old.

3 .................................................................................................................... ?

There are 5 people in her family.

4 ..................................................................................................................... ?

We live in a house.

VI. Writing.

1. the / they / in / room / are / living.

.........................................................................................................................

2. school / teachers / in / are / many / our / there / how /?

.........................................................................................................................

tham khao nha

mình xem thôi chứ ko chơi

ukm vậy à mik có chơi nhưng chơi ít

phim đó hay ha

mik nghiện rùi

kb vs mình, mình chỉ cho, mình mời thi hôm qua  nè

buổi sáng nha các bạn

Buổi sáng không gian thật yên tĩnh vắng teo. Ông mặt trời đang ngái ngủ sau giấc ngủ dài và chiếu những tia nắng đâù tiên xuống trần gian. Trên đồng có rất nhiều giọt sương long lanh nhìn như những viên ngọc. Những cây lúa trải dài mênh mông xa tít tận trân trời. Nằm giữa cánh đồng là con máng dẫn nước rộng thênh thanh.

Bài hoàn toàn ko chép mạng

K mk nhé