5/10 trâu =4/10 bò 

=> trâu 4 phần thì bò 5 phần

tổng số phần = nhau là:

4+5=9 phần

vậy số bò là:

108:9x5=60 con

=> số trâu là:

108-60=48 con 

đ/s...

complete the second sentence so that it has a similar meaning to the first one:

1.'' Who helped your brother yesterday''said Nam.

->Nam wanted to know who had help his brother the day before.

2.My father took me to the HCM city when I was 12 years old.

->I remember to be taken to the HCM city by my father when I was 12 years old.

3.I could never succeed without your help.

->If it hadn't been for your help,I couldn't have succeeded

4.Everyone believes that he stole the car.(??)

->The police has caught him for stealing the car.

5.I only recongnised him when he came into light.

->No until he came into light,did I recognise him

6.He is going to have a man paint his house.

->He is going to have his house painted

7.May I borrow your pen?

->would you mind If I borrowed your pen?

8.He remember,and so did she.

->He didn't forget and neither did she.

Ta co : 

|0,6-4x|=3,2

=>|0,6-4x|=+-3,2

TH1:

0,6-4x=3,2

4x     = 0,6-3,2=-2,6

x       = -2,6:4=-0,65

TH2:

0,6-4x=-3,2

4x      = 0,6-(-3,2)=3,8

x        = 3,8:4=0,95

Ma de bai cho gia tri x<0

Vay suy ra x=-0,95 ( thoa man de bai) 

lik e nhe

IX/ Viết lại câu sao cho nghĩa không đổi

1, It is necessary to learn English well.

Learning eg well is necessary.

2, We should get up early every day.

We shouldn’t get up late everyday.

3, How wide is this room?

What is the width of this room?

4, Don’t forget to lock the front door before you leave.

Be sure the front door locked before you leave.

5, No one in my class is hard-working than Nam.

Nam is the most hard-working in my class.

6, What is your date of birth?

When is your birthday?.

7, Going swimming in the summer is very interesting.

It’s very interesting to Go swimming in the summer

8, Math is a more difficult subject than other ones.

No subject is as difficult as math.

9, I am very glad to see you all again.

It’s very glad to see you again

10, What about going to the sea for a change?

Let’s go to the sea for a change?

1.please be quiet! I (work).......am working....................

2. she (play) .........was palying..............tennis when she broke (break) .................her arm

3. i didn't like exercising at first but now I (used to / go).....am used to going............... jogging every morning

4.aften dinner, Ken (suggest) suggested...............(go)...going... for a walk

5. please sit down I (try).....am trying............. (watch)...to watch..................this tv program

6.It (rain)....rains......... every time he (go)..goes.... out

7. nancy (submit).....had submitted......... her resume before she (nkow)....knew............. the positon was filled

8. my father (smoke)......has smoked... any cigarette since 2002

9. be careful! the ladder (fall)...is falling...... dwon

10. when i got home, he wasn't there. he (go)...went........ out

11. when they (go) ...went..... out of the house they (take) ..took........... thier umbrella becau se it was raining

12.at 9.00 on next sunday, we (have)...will being had.................adinner at our friend's house

13 fred and george are astors they (act)......have been acting............three times a day at the moment

14. you'd better (listen)listen...to other people instead of (talk)...talking..............about yourself all the time

15. jimmy (throw)threw. the ball high in the air and betty (catch)....caught.........it when it (come)..came...........down

16.only five years ago, there (be).was............... a shortage of computer specialists

17. when sue looked into the fridge, all the food (go).....went.............

18.I can't find my umbrella.- Don't worry.I (lend)...will lend.......................you mine

19.at 8 o'clock yeswere swimming................in the seaterday morning we (swim)....

20.john anh sarah first (meet)....met......... in 1998, and they (be married) ..have been married........for three years now

21.some people (believe).....believe..... there is life on the other planets

Conplete the setences.Use the words in parentheses :

1. A : ( Ms.Carter,teach)_Did ....teach_____class yesterday ?

B : No,she didn't . Mr. Adams ( teach)_taught_____our class.

2. A : I ( ride)__rode___the bus to school yesterday. How did you get to school ?

B : I ( drive) drove_____ my car.

3. A : Did you decide to change schools ?

B : I (think )_thought_____ about it, but then I decide to stay here.

4. A : (you,go) _Did ...go_____ shopping yesterday ?

B : Yes. I ( buy) _bought___ a new pair of shoes

5. A : ( you,study) _Did...study_______ last night ?

B : No, I didn't . I was tired . I (read)read a magazine and then (go)___went__ to bed early.

6. A : Do you like milk ?

B : No, I ( drink)_drank___milk when I ( be ) _was_____ a child, but I don't like milk now.

7. A : Did you leave your dictionary at home ?

B : No. I ( bring )_brought_____ it to class with me.

8. A : Did you enjoy your fishing trip ?

B : I had a wonderful time ! I ( catch) ___caught___ a lot of fish.

Change these sentences into passive :

1.No one has ever asked me that question before

=>I have never been asked that question before.

2.They haven't done anything since he left

=>Nothing has been done by them since he left.

3.A doctor has just examined John

=>John has just been examnied by a doctor.

4.They haven't used this machine for ages

=>This machine hasn't been used for ages.

5.Peter has sung this song

==>This song has been sung by Peter.

6.They have paid doctors a lot of money

=>Doctors have been paid a lot of money.

7.She has eaten all the ages

=>All the ages have been eaten by her.

8.Famous engineers have designed the aircraft

=>The aircraft has been designed by famous engineers.

9.Have several people just seen the accident?

=>Has the accident just been seen by several people?

10.We have invited all the members to the party

=>All the members have been invited to the party.

xử lý các trường hợp sau .

1. I'm sick

=>You should go to see the doctor for advice.

2. I have plu

=>You should have a glass of warm water.

3. I'm putting on weight

=>You should do more exercise and have a balance diet.

4. I have toothache

=.You shouldn't eat many sweet.

=>You should clean your mouth .

=>You should have medicine.

5. I have sun sunburn

=>You should have cream that prevents the sun light.

6. I have earache

=>You should go to the hospital to check your disease.

7. I'm so thin

=>You should eat more ,balance diet.

8. I feel tired

=>You should go to bed.

9. I have a sore throat

=>You should drink the mixture of salt and lemon.

Sắp xếp những từ sau thành câu hoàn chỉnh:

1. house/bike/our/go/us/it/ten/takes/to/from/to/zoo/the/by/minutes

=>It takes us ten minutes to go from our house to the zoo by bike.

2. takes/two/to/Vung Tau/coach/it/us/hours/go/by/to.

=>It takes us two hours to go to Vung Tau by couch.

chì 10000đ

mực 20000