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18 tháng 5 2021

They may hold a conference call meeting this Friday

27 tháng 1 2018

1/ Service is included by the bill;

2/ Some of my books have been taken away;

3/ The meeting will be held before May Day

4/ The engineer of the car has to be repaired;

5/ This room may be used for the classroom; 6/ A story is going to be told by the teacher ; 7/ Lucky for me, my name wasn't called; 8/ the wall must be cleaned before you paint it Hoặc bị động cả thì “The wall must be cleaned before it is painted”; 9/ I have been ever treated with such kindness
27 tháng 1 2018

1/the bill includes the service.

=>Service is included by the bill

2/someone has taken away some of my books.

=>Some of my books have been taken away

3/they will hold the meeting before May Day

=>The meeting will be held before May Day

4/ Her father has to repair The enginneof the car.

=>The engineer of the car has to be repaired

5/they may use this room for the classroom.

=>This room may be used for the classroom

6/the teacher is going to tell the story.

=>A story is going to be told by the teacher

7/ lucky for me, They didn't call my name.

=>Lucky for me, my name wasn't called

8/ you must clean the wall before you paint it.

=>The wall must be cleaned before it is painted

9/nobody has ever treated me with such kindness.

=>I have been ever treated with such kindness

8 tháng 12 2021

11 More information was given to us by her

12 All the workers of the plan were being instructed by the chief engineer

13 Tea can't be made with cold water

14Some of my book have been taken away 

15 The meeting will be held before May Day

16 The engine of the car has to be repaired 

17 The window was broken and some pictures are taken away by the boyss

18 A lot of money is spent on advertising everyday

19 A story is going to be told by teacher

20 A cake is being cut with a sharp knife by Mary

21 The woman with a red hat was looked at by the children

22 The victims have been provided with food and clothing

23 English is spoken in almost every corner of the world

24 This machine mustn't be used after 530 pm

25 After class, the chalk board is always erased by one of the students

 

8 tháng 12 2021

11. She gave us more information. More information was given us. 12. The chief engineer was instructing all the workers of the plan. All the workers were being instructed of the plan by the chief engineer. 13. They can’t make tea with cold water. Tea can't be made with cold water. 14. Somebody has taken some of my books away. Some of my books has been taken away. 15. They will hold the meeting before May Day. The meeting will be held before May Day. 16. They have to repair the engine of the car. The engine of the car has to be repaired. 17. The boys broke the window and took away some pictures. The window was broken and some pictures were taken away by the boys. 18. People spend a lot of money on advertising every day. A lot of money is spent on advertising every day. 19. Teacher is going to tell a story. A story is going to be told by teacher. 20. Mary is cutting a cake with a sharp knife. A cake is being cut with a sharp knife by Mary. 21. The children looked at the woman with a red hat. The woman with a red hat was looked at by the children. 22. They have provided the victims with food and clothing. The victims have been provided with food and clothing. 23. People speak English in almost every corner of the world. English is spoken in almost every corner of the world. 24. You mustn’t use this machine after 5:30 p.m. This machine mustn't be used after 5:30 pm. 25. After class, one of the students always erases the chalk board. After class, the chalkboard is always erased by one of the students

28 tháng 7 2021

c

28 tháng 7 2021

C nhé

ở đây dùng mệnh đề quan hệ rút gọn với dạng bị động

vì vậy chỉ dùng V3

1 tháng 8 2017

Rewrite the sentences so that their meanings do not change.

Somebody has taken away some of books.

=>Some of my books have been taken away

They have to repair the engine of the car.

=> The engine of the car has to be repaired

No one believes his story.

=> His story is not believed by anyone

They may use this room for a classroom.

=> This room may be used for a classroom.

The teacher is going to tell a story.

=> A story is going to be told by The teacher

Many is cutting the cake with a shap knife.

=> The cake is being cut with a shap knife.by Mai

People speak English in almost every corner of the world.

=> English is spoken in almost every corner of the world.

You mustn't use this machine after 5.30 pm.

=> This machine mustn't be used after 5.30 pm.

Luckily for me, they didn't call my name.

=> Luckily for me, my name wasn't called

They will hold the meeting before May Day.

=> The meeting will be held before May Day.

Rewrite the sentences so that their meanings do not change.

Somebody has taken away some of books.

=>Some of my books have been taken away.

They have to repair the engine of the car.

=> The engine of the car has to be repaired.

No one believes his story.

=> His story is not believed.

They may use this room for a classroom.

=> This room may be used for a classroom .

The teacher is going to tell a story.

=> A story is going to be told by teacher.

Many is cutting the cake with a shap knife.

=> The cake is being cut with a sharp knife by Mary.

People speak English in almost every corner of the world.

=> English is spoken in almost every corner of the world.

You mustn't use this machine after 5.30 pm.

=> This machine mustn’t be used after 5:30 p.m.

Luckily for me, they didn't call my name.

=> Luckily for me, my name wasn't called.

They will hold the meeting before May Day.

=> The meeting will be hold before May Day.

21 tháng 8 2019

má sao gặp ai cũng toàn ko ghi đề thế nhỉ ức chế vãi

21 tháng 8 2019

đề là chuyển câu chủ động sang bị động nha bạn

21 tháng 8 2019

Đề bài là gì bạn

21 tháng 8 2019

Bạn ơi,cho 3 tích đi!

1)Tea can't be made with cold water by them.

2)All the workers of the plan were being instructed by the chief engineer.

3)Some of my books have been taken away .

4)The meeting will be held (by them)  before May Day

5)The engine of the car must be repaired (by them)

6)The engine of the car was broken by the boy.

7)A lot of money is spent on advertising (by people) everyday.

(những từ trong ngoặc là ko cần thiết,thêm hay ko đều dc)

29 tháng 3 2021

1. They will hold the meeting befor may day

---> The meeting will be held before May day

2.They have to repair the engine of the tea

--> The engine of the car have to be repaired 

 3.The baysbroke the window and took the way some picture

----> The window was broken and some pictures were taken the way by the bays

 4.people send a lot of money a advertising everyday

---> A lot of money was sent for advertising 

5 .They may use this room for the classroom

---> This room may be used for the classroom

 6.The teacher is going to tell a story

---> A story is going to be told by the teacher

 7.Mary is cutting thế cake whit a sharp knife

---> The cake is being cut with a sharp knife by Mary

 8.The children looked at the women with hat

---> The women with hat was looked at by the children

 9.They have provided thế victims whit food and clothing

---> The victims have been provided with food and clothing

 10.The teacher explains the lesson

---> The lesson is explained by the teacher

 11.The doctor examined the patients

---> The patients were examined by the doctor

 12.These boy made that noise

---> That noise was made by these boys

AH
Akai Haruma
Giáo viên
15 tháng 10 2021

Câu 9 cần bs điều kiện $x,y,z\neq 0$

$\frac{x}{3}=\frac{y}{4}\Rightarrow \frac{x}{15}=\frac{y}{20}$

$\frac{y}{5}=\frac{z}{6}\Rightarrow \frac{y}{20}=\frac{z}{24}$

$\Rightarrow \frac{x}{15}=\frac{y}{20}=\frac{z}{24}$ và đặt $=t$ (đk: $t\neq 0$)

$\Rightarrow x=15t; y=20t; z=24t$

Khi đó:

$M=\frac{2.15t+3.20t+4.24t}{3.15t+4.20t+5.24t}=\frac{186t}{245t}=\frac{186}{245}$

Đáp án B.

AH
Akai Haruma
Giáo viên
15 tháng 10 2021

Câu 10:

Giả sử số $A$ được chia thành 3 phần $a,b,c$ sao cho

$a:b:c=\frac{2}{5}: \frac{3}{4}: \frac{1}{6}$

Đặt $a=\frac{2}{5}t; b=\frac{3}{4}t; c=\frac{1}{6}t$

$A=a+b+c=\frac{2}{5}t+\frac{3}{4}t+\frac{1}{6}t=\frac{79}{60}t$

Có:

$a^2+b^2+c^2=(\frac{2}{5}t)^2+(\frac{3}{4}t)^2+(\frac{1}{6}t)^2=24309$

$t^2=32400$

$t=\pm 180$

$\Rightarrow A=\frac{79}{60}t=\frac{79}{60}\pm 180=\pm 237$

Đáp án D.