bn tra trên mạng đó, khắc có lời giải, đây là lời giải bài 1 mk cop trên đó đấy:

 Bài 1: 
Gọi A là tổng số viên bị của 2 bạn thi: 
Số viên bi Bắc bằng 3/5 tổng số bi, hay là: 3/5 . A 
số bi củ Trung bằng 1/2 tổng số bi của hai bạn : 1/2.A 
Bắc có nhiều hơn Trung 5 viên bi nên là: 3/5A - 1/2.A = 5 
Giải ra tìm tổng số bi, sau đó thế vào tìm 2 người. 

Như : Hi, .......my........ name ...is Như............... ..................

Yến : Hi, I'm ........Yến........... . .........How............ are .......you.......... ?

Như : I'm fine, ........thank......... you. And ........you........... ?

Yến : ............I'm fine........., thanks.

------------------------------------------Phần B--------------------------------

B                                    Good morning

1. Hãy cho các câu chào thích hợp với các giờ.

Ex : 6 : 00 a.m                   Good morning

1. 13 : 00 p.m : .......Good afternoon............                       3. 18 : 00 p.m : .......good evening..........

2. 10 : 00 a.m : .........good noon ..........<kì kì >                       4. 21 : 00 p.m : .......Good night...........

2. Tìm từ không cùng loại với các từ còn lại .

Ex : morning              thanks                     evening                afternoon

1. hi                        hello                    goodbye                      good afternoon

2. good night                 good morning                   goodbye                       bye

3. good evening                    good morning                 hello                          fine

3. Viết các câu trả lời.

1. Angel : Good morning, Miss Hanah.

Miss Hanah : ...............Good morning , Angel.......................

2. Teacher : Goodbye, children.

Children : ...................Goodbye teacher................

3. Mr Sunny : How are you ?

Children : ..............I'm fine, thank you............

4. Devil : Hi, Demon. How are you ?

Demon : ................Hi devil , I'm fine...................

1.there are lots of parties ....in.... christmas

2.khoi is my close friend . i spend  most of my free time ..with..... him

3. he does volunteer word .in..... a local hospital

4.his friend didn't laugh......at.... his jokes

5. my friened uaually enjoy my sense...of....... humor

Write the plural of the noun following                                                                                                                                                                                         The { fish } ......fish...... I bought are the fridge
< Từ này bất quy tắc nhé >                  

The [student] ..........students....... are doing the excercise now

1. people in my country are every warm and ....friendly......(friend)

2. AN.....orphanage... is a home for children whose parents are dead (orphan)

3, L.A.HILL is a ......humor...(humor)

4, i'm ....extremely....... sorry sor th delay (extreme)

5, she look more .beautiful... than her sister(beauty)

6, they were very .....lucky .to survive a shipwreek(luck)

7, i love the .....peace... of summer evening in the countryside (peaceful)

8, those cats look .....lovely.....(love)

9, bao is very ......social...., kind and generous (social)

10, each of my friend has a ...difference....... character(differ)

a) \(475-\left(75-36\right)\)
              \(=475-75+36\)
              \(=\left(475-75\right)+36\)
              \(=400+36\)
              \(=436\)
b)\(573-\left(73-24\right)\)
              \(=573-73+24\)
              \(=\left(573-73\right)+24\)
              \(=500+24\)
              \(=524\)
Like nha, thks

1.I like wearing jeans because jeans have never been out           fashion

A. by   B.on   C.of   D.at

2. A great deal of tea             everyday in England

A.drink    B.dirnks   C.is drunk   D.are Drunk

3.I look forward             from you

A.to hear   B.haring   C.to hearing  D.hear

4. Everyone in this school has to wear a uniform and so           

A.you do   B. are you   C.you are   D.do you

5.If we work hard,we will make this beach a clean and                 place again 

A.beautiful   B.beauty   C.beautician   D.beautifully

6. Unles he                   hard,he            the final exam

A.doesn't study/will pass     B.studies/won't pass  

C. studies/will pass            D.doesn;t study/won't pass

7.              it was so windy and cold,she wen out without a coat

A.Although   B.despite    C.In  spite  of    D.However

8.Peter:'' Would you like to drink more coffee''?

A.No, I don't like   B.yes,I like it   C.Yes,I'd love to  D.Yes, Ilike you

9.Mathematics is a            subject in school

A.easy    B.unimportant    C.compulsory   D.choice

10. I don't want much sugar in my coffee.Just              ,please!

A. a little   B.a few    C.few    D.little

11. The new teach loves poems and            them by heart

A.makes us learn   B.make us learn   C.makes us to learn   D.make us to learn

12.When he               here,Mark was always making mistakes

A.worked   B.working   C.works    D.had worked

13.Jane :''            do you go to the library ?''

     Jack:''Twice a week''

A.How offten    B.How far    C.How much  D.How long