bb

a﴿ Ta có : AB // Ox ﴾đề bài﴿

=>\(\widehat{COB}\)+ \(\widehat{ABO}\) = 180\(^o\) ﴾vì là 2 góc trong cùng phía﴿

Mà \(\widehat{COB}\) = 30\(^o\) ﴾đề bài﴿

=> 30\(^o\) + \(\widehat{ABO}\) = 180\(^o\) 

\(\widehat{ABO}\) = 180\(^o\) ‐ 30\(^o\)

\(\widehat{ABO}\) = 150\(^o\) 

Ta có : AB // Ox

=> \(\widehat{COB}\) = \(\widehat{ABy}\) ﴾vì là 2 góc đồng vị﴿

Mà \(\widehat{COB}\) = 30\(^o\) 

=> \(\widehat{ABy}\) = 30\(^o\) 

b﴿ Ta có : Oy // AC

=> \(\widehat{ABy}\) = \(\widehat{CAB}\) ﴾vì là 2 góc so le trong﴿

Mà \(\widehat{ABy}\)= 30\(^o\) ﴾CMT﴿

=> \(\widehat{CAB}\)= 30\(^o\) 

Ta có : AB // Ox

=> \(\widehat{\text{x}CA}\)= \(\widehat{CAB}\) ﴾vì là 2 góc so le trong﴿

Mà \(\widehat{CAB}\) = 30 o ﴾CMT﴿

=> \(\widehat{\text{xCA}}\) = 30\(^o\)

a) Ta có : AB // Ox (đề bài)

=> COB + ABO = 180^o (vì là 2 góc trong cùng phía)

Mà COB = 30^o (đề bài)

=> 30^o + ABO = 180^o 

              ABO = 180^o - 30^o

                   ABO = 150^o

Ta có : AB // Ox

=> COB = ABy (vì là 2 góc đồng vị)

Mà COB = 30^o => ABy = 30^o

b) Ta có : Oy // AC

=> ABy = CAB (vì là 2 góc so le trong)

Mà ABy = 30^o (CMT)

=> CAB = 30^o 

Ta có : AB // Ox

=> xCA = CAB (vì là 2 góc so le trong)

Mà CAB = 30^o (CMT)

=> xCA = 30^o 

l:Give the correct form of the word in brackets to complete the following sentences :

1: she has the most..adorable . two-year old girl (adore)

2: he's.addicted.. to computer games (addict)

3: the ideal candidate will be an effective..communication...(communicate)

4: the best films are those which transcend national or..cultural..barriers(culture)

8:she listens to classical music for..relaxing...(relax)

9: you haven't yet given us a ...satisfied....explanation(satisfy)

10: the ....social.....party has been in office for almost ten years (society)

câu 1 b viết chưa có từ cho sẵn nha

mình sửa lại 1 chút

They haven't lived here longer than us

c2 thì mình nghĩ là 

He is eager who wants to help us in any way he can

1. They' ve lived here for a long time but we've lived here longer(than) => they haven't lived here as long as us .. 2. He's eager. He wants to help us in any way he can => he's..who wants to help us in any way he can 

" We got married six months ago '' she said to us

She said to us that they had got married six months before

" We've brought you a present '' she said to me

She said that they had bought me a present

Đề là chuyển câu trực tiếp sang gián tiếp nha

Read the passage and fill in each space with on suitable word.

To many people, their friends are the most important ---people---- in their life. Really good friends -share------ the good times and the best time, help you when you've got problem, never judge you and never tuen their back on you. Your best friend may be --someone------ you've known all your life, someone you've grown up with and been through lots of ----up----- and down with. There are all sorts of things that can bring about this special relationship. It may be the ----same--- of enjoying the same activities, having the outlook of life, or sharing similar experiences. Most of us have met someone that we've immidiately feel ralaxed with, ---even------ if we've known them for years. However, ussually it really does take you years to ---get---- to know someone well enough to consider him your best friend. To majority of ---us- this is someone we trust completely and who understand us than anyone else. It's the person you can turn to for impartial advice and a shoulder to cry on ---when---- life gets you down.

To many people, their friends are the most important people in their life. Really good friends share the good times and the best time, help you when you've got problem, never judge you and never tuen their back on you. Your best friend may be someone you've known all your life, someone you've grown up with and been through lots of up and down with. There are all sorts of things that can bring about this special relationship. It may be the same of enjoying the same activities, having the outlook of life, or sharing similar experiences. Most of us have met someone that we've immidiately feel ralaxed with, even if we've known them for years. However, ussually it really does take you years to get to know someone well enough to consider him your best friend. To majority of us this is someone we trust completely and who understand us than anyone else. It's the person you can turn to for impartial advice and a shoulder to cry on when life gets you down.