Không điền được                                     

1) We should open all the windows,so we don't ___________ use air-conditioners.

A. have          B. have to          C. needn't          D.need

2) Plant more trees in the schoolyard because they will provide shade and _______ the atmosphere fresher.

A. do              B. make             C. have              D. use

3) Our dream house will use only solar energy so that we can make the ________ clean and green.

A. nature        B. environment  C. kitchen          D. home

4) Many products are now helping you ________ your energy bills.

A. reduce       B. reuse             C. recycle          D. cut down

5) It takes a lot of energy to keep food cool, so don't ________ the fridge door open or putting hot things inside.

A. make         B. have              C. leave             D. stop

6) Future house will have hi-tech ______ rooms for all of the family members.

A. read          B. to read           C. reading          D. to reading

7) Our house will use the sun or the wind _______ electricity.

A. to have     B. to do              C. to make          D. to give

8) In the future, cars might use energy from ___________

A. gas          B. water              C. oil                   D. power

9) Our dream house will be located ______ the sea.

A. on           B. at                     C. in                   D. between

10) Don't ____________ old things because perhaps you will need them later.

A. throw      B. throw away      C. throwing        D. throwing away

11) __________ causes many breathing problems.

A. Fresh air    B.Fresher air    C. Polluting air   D. Polluted air

12) We won't use CD players because we will have smart watches that _____ music.

A. play          B. plays              C. hear               D. listen to

13) If you eat ______ fast food ,you will be fatter easily.

A. very          B. very much      C. too much       D. most 

Tuổi ông gấp 7 lần tuổi cháu tức là tuổi cháu bằng  7/1 tuổi ông

Hiệu số phần bằng nhau là :

7 - 1 = 6 ( phần )

Tuổi của ông là :

60 : 6 x 7 = 70 ( tuổi )

Tuổi của cháu là :

70 - 10 = 60 ( tuổi )

Đáp số : Ông : 70 tuổi

            Cháu : 10 tuổi

1. A.great                   B.beautiful                C.teacher                D.means

2. A.wet                      B.better                      C.rest                      D.pretty

3. A.horrible             B.hour                         C.house                 D.here

4. A.party                  B.lovely                       C.sky                     D.empty

5. A.stove                 B.moment                   C.sometime         D.close

1. Why don't we take a taxi to get there? he said. (suggest)

he suggested we should take a taxi to get there.

2. I don't mind helping you slove the problem, he said to her. (offer)

he offered her not to help her slove the problem

3. I'm sorry. I am late, said she (apologise)

she apologised for being late.

4. Tell us where you are from, they said. (want)

they wanted to tell us where i were from.

5. Try your best to study, my father said to me. (encourage)

my father encouraged me to try my best to study.

6. Give me a hand, said she. (beg)

she beged to give her a hand.

7. I don't agree with you on the matter, said he. (refuse)

he refused that he didn't agree with me on the matter.

1.She last wore that dress at her sister's wedding. 

She hasn't written that dress since her sister's wedding

2.Jack London didn't write the novel " The Adventures of Tom Sawyer " 

The novel " The Adventures of Tom Sawyer " wasn't written by jack london

3. Computer are used to design new models. 

People used to design computer new models.

4. When did you start working in that factory?  

How long have you started working in that factory?

5. It isn't necessary for students to wear uniform today. 

Students aren't necessary to wear uniform today.

6. Mary can't go to school because she is too young.

Mary isn't old enough to go to school.

7. Lan spends 3 hours a day doing her homework.

It takes Lan 3 hours a day to do her homework.

112% = 28/25

Số học sinh nam là : 636 : (28 + 25) x 25 = 300

play:volleyball,football, hide-and-seek, blindman's bluff, shuttlecock, tag, jum rope,...

do: homework, housework,...

have: a comb, a mirror, some candys, a flower, a tv, a stereo, a cell phone, a bike, a motorbike, a car,...

study:eglish, vietnamese, japanese, malaysia, chinese,korean,,...

lãng tử đào hoa chắc là người chuyển giới ^.^

1. You had better leave this party early, he asked. (advise)

he advised me to leave that party early.

2. Stop your car, the policeman asked me. (order)

the policeman ordered me to stop my car.

3. Would you like a cup of tea, asked she. (invite)

she invited me if i would like a cup of tea.

4. You take my ring, I said to him.(accuse)

i accused him to take my ring.

5. Don't touch the oven. It is very hot, he said to me. (warn)

he warned me not to touch the oven. it was very hot