20m.làm ơn like cho mìk đi. T_T

literature

1. We have a two-month summer vacation. -> Our summer vacation lasts..two months...............................

2. Will you look after the house while we are away? -> Will you please take...care of the house while we are away...............................?

3. It takes me about two hours each day to do my homework. -> I spend..about two hours each day doing my homework............................

4. Hoa is a hard student. -> Hoa studies.....hardly ...........................

5. It isn't important for you to finish the work today. -> You don't...have to finish the work today................................

6. I advise you to wear these gloves. -> You'd better wear these gloves.................................

8. Trung didn't go to school last Tuesday. -> Trung was..absent from school last tuesday...............................

9. Why isn't this TV working now? -> What's....the matter with TV now...........................?

10. Listening to music is more interesting than watching TV. -> I prefer..listening to music to watching tV...........................

dien tich xung quanh la 

(6+4,5)*2*4=84 m2

dien tich day la 

6*4,5=27 m2

dien tich quet voi la 

84+27-8,5=102,5 m2

dap so:102,5 m2

change the following sentences from affirmative to negative:

1)There are eleven months in a year -> aren't

2)The plane arrived at ten o'clock -> didn't arrive

3)He went to Chicago by plane -> didn't go

4)The two boys are in Mr Hoa's office -> aren't

5)The magazine cast two dollars -> didn't cost

6) They live in Texas now -> don't live

7) They lived in France for 10 years -> haven't lived 

8)They got up at five o'clock this morning -> didn't get

Complete the sentences using the correct form of the words in brackets.

1. He feels very.....angry ..............so he talks angrily ..............                                             Anger

2. She looks......attractive.................................in her new coat.                                   Attract

3. He plays soccer......beautifully............................................                                         Beauty

4. Nam is always.....busy.............................He is on his. business  trip.............this week.        Business

5. Mr. Han is a ...careful ........................ driver. He driver...carefully .......................              Care

6. I live on.......center...................  highland in Dalak      ........central...................             Center

1. Last semester / my class / there be / total / 98 days' / absence / due / sickness.

last semester in my class ,there was a total of 98 days'absence due to sickness

2. We / cold / 'common' / because / every year / millions / people / world / catch

we call the cold 'common'because every year millions of people all over the world catch it

               ------------------------------------------------------------------------------------------------

Fill in the blanks with the correct prepositions.

1. Eating too much candy is bad..for.......you.

2. The dentist looked..for..........my teeth and he told me...about...........my broken tooth.

3. What's wrong.with..........your daughter, Mrs.Mai?

4. Dr.Phong fills the cavity..of.........Van's tooth.

5. These days Mr. Cuong is very busy....with..........his work.

6. The girls can't make..up..........their minds yet.

Nửa chu vi HCN là : 54 : 2 = 27 m

Chiều dài HCN là : 27 : ( 4+ 5 ) x 5= 15 m 

Chiều rộng HCN là : 27 - 15 = 12 m

Diện tích HCN là : 15 x 12 = 180m²

Diện tích làm nhà là: 180 : 100 x 65 = 117 m²

I. Complete the sentences with the corect conjunction and, or, so, but

1. Watch less television..and......you can protect your eyes.

2. Take up a new hobby...and......you will have some new friends.

II. Fill in each blank with one suitable word

1. I love..playing.......outdoors in my garden to plant flowers and vegatables.

2. Tom and Peter like water.sports..........and they go swimming, play water polo and surf together a lot.

3. I really enjoy going round the shops in my town to...look...........for rare and old teacups.

4. My parents have just bought a new..pair...........of roller skates

x/2=y/3=y/4=z/5va x+y-z=10
tu x/2=y/3=>x/8=y/12
tu y/4=z/5=> y/12=z/15

ap dung tinh chat cua day ti so bang nha ta co
 x/8=y/12=z/15=(x+y-z)/8+12-15=10/5=2
=>x/8=16,y/12=24,z/15=30