1. Unfortunately (fortunate), dark clouds appeared and it began to rain, so we couln't go out.

2. The child (behaviour) misbehaved at school so he was sent home as a punishment.

3. If we don't (economy) economize on electricity, there will be power cut.

1 are => is

2 surf => surfing

3 economy => economize

1. My uncle as well as my father are going to canada on business.

are ⇒ is

2. How much time do you spend surf the web a day?

surf ⇒ surfing

3. If we don't economy on electricity, there will be power outs.

economy ⇒ economize

__T_29/ People use electricity to power many appliances in our homes

__F__30/ Electricity is generated at solar energy.

__T__ 31/ Life will be lost if there is no electricity.

__T__ 32/ Turbo generators are driven by steam

1. don't econnomise

2.will finish / gets

3 won't be

4 are - speaking

1) They ( never eat ) ...never eat.... Mexico food .

2) If we ( not encomize ) ....don't encomize.... on electricity , there will be power cuts

3) If we sit too too far away from screen I ( not be ) ...won't be... able to see the film 

4) My aunt and uncle ( visit ) ..visited... Tokyo last Tuesday .

5)does  Mary ( have ).have.... short hair ? 

1) They never eat Mexico food 

2) If we don't enconomize on electricity , there will be power cuts

3) If we sit too far away from screen I won't be able to see the film 

4) My aunt anh uncle visited Tokyo last Tuesday . 

5) Does Mary have short hair ? 

Word encomize is not correct , word enconomize correct!!

1) They ( never eat ) ....... Mexico food .

They have never eat Maxico food

2) If we ( not encomize ) ........ on electricity , there will be power cuts

If we don\t emcomize on electricity, there will be power cuts.

3) If we sit too too far away from screen I ( not be ) ...... able to see the film 

If we sit too too far away from screen, I won't be able to see the fil,

4) My aunt and uncle ( visit ) ..... Tokyo last Tuesday .

My aunt and uncle visited Tokyo last Tuesday

5) Mary ( have )..... short hair ? 

Does Mary have short hair?

Put the verbs in brackets in their correct form.

1. If we (not economise) ___don't economise___ on electricity, there will be power cuts.

2. I hope he (finish) __will finish____ his homework before we (get) _get_____ back.

3. If we sit too far away from the screen I (not be) ___will not be___ able to see the film.

4. Listen to those people! What language are they (speak) __speaking____?

Put the verbs in brackets in their correct from

1 . If we ( not economise ) DON'T ECONOMISE on electricity , there will be power cuts

2 . I hope he ( finish ) WILL FINISH his homework before we ( get ) GET back

3 . If we sit too far away from the screen I ( not be ) WILL NOT BE able to see the film

4 . Listen to those people ! What langugae ARE they ( speak ) SPEAKING ?

1. don't economise

2. will finish ; get

3. will not be

4. are ; speaking

1. They never eat any Mexican food
2. Hoa has walked in the rain many times. She loves it
3. I never saw such a big flower
4. We haven't visited Nha Trang for 5 years
5. I have read that novel three times
6. He never met her before
7. The zoo isn't far from here. I have walked there many times
8. If we don't economize on electricity, there will be power cuts
9. I hope he finishes his homework before we get back
10. If we sit too far away from the screen, I won't be able to see the film
11. Your father played sports yesterday afternoon
12. If more people cycle, there will be less air pollution
13. One day, we might travel to the moon for a holiday
14. He travels to work by car
15. The children are playing soccer at the moment
16. She doesn't do her housework every afternoon
17. He will buy a new hat tomorrow
18. Many people prefer flying to going by sea
19. He moved to Paris in 1917 and spent six years there
20. What will you do tomorrow morning? I will play video games

Đáp án: Modern man would most probably be lost/ Our life would be lost (if there were no electricity).

Modern man would most probably be lost/ Our life would be lost (if there were no electricity).