1 . a book - books

2 . a pen - pens

3 . a class - classes

4 . a classroom - classrooms

5 . a country - countries

6 . a key - keys

7 . a box - boxes

8 . a pencil - pencils

9 . an eraser - erasers

10 . a day - days

ủng hộ nhé~~

1. a book - books

2. a pen - pens

3. a class - classes

4. a classroom - classrooms

5. a country - countries

6. a key - keys

7. a box - boxes

8. a pencil - pencils

9. an  eraser - erasers

10. a day - days

1. books

2. pens

3. classes

4. classrooms

5. countries

6. keys

7. boxes

8. pencils

9. erasers

10. days

Chuyển từ số ít sang số nhiều

1. This man is old.

these men are old

2. That is new box.

those are new boxes

3. This tooth is white.

these teeth are white

4. What is that ? It 's a foot.

what are those? they are feet

5. There is a child.

there are some children

1 . an armchair - armchairs

2 . a board - boards

3 . a lamp - lamps

4 . a door - doors

5 . a window - windows

6 . a doctor - doctors

7 . a city - cities

8 . a leaf - leafs

9 . a bag - bags

10 . a telephone - telephones

11 . a cat - cats

12 . a chair - chairs

13 . an ox - oxes

14 . a basket - baskets

15 . a cow - cows

16 . a half - halfs

17 . a cup - cups

ủng hộ nhé~~

1.armchairs

2.broad

3, lamps 

4, doors

5, windows

6, doctors

7, cities 

8. leaves

9, bags

10, telephones 

11, cats 

12 chairs

13, oxes

14, baskets

15, cows

16, halfs

17, cups

Tk mk nhas

9, 

1.two armchairs

2.two boards

3.two lamps

4.two doors

5.two wimdows

6.two doctors

7.two cities

8.two leaves

9.two bags

10.two telephones

11.two cats

12.two chairs

13.two oxen

14.two baskets

15.two cows

16.two halves

17.two cups

tk mk nha mn!!chúc bạn hk tốt

các bạn giúp mình vs .

Chuyển sang số nhiều:

1) What's this? It's a bench....=>What are these?.They are beaches..................................................................

2) Is that her knife? .....Are Those her knives............................................................................

3) This woman has a child. .......These woman have many children..............................................................

4) The policeman is in his room. ......These policeman are in his room......................................................

5) Does he has a white tooth? ......Does he have white tooth.................

Chuyển sang số nhiều:

1) What's this? It's a bench ⇒.......What are these? These are benches.......................

2) Is that her knife? ⇒ ........Are those her knives..................

3) This woman has a child. ⇒ ...........This woman has children..............

4) The policeman is in his room.⇒ .......The policemen are in his room...........

5) Does he have a white tooth? ⇒ .........Does he have white teeth...........?

1. What are these? There are benches.

2. Are those her knives ?

3. This woman has many children

4. The policemen are in his rooms.

5. Does he have white teeth ?

Chuyển sang số nhiều các câu sau:

1. What are these ? They are benches.

2.Are those her knives ?

3.These women have many children.

4.The policemen are in their rooms.

5.Does he have white teeth ?

1.What are these?-They are benches.

2.Are those her knives?

3.These women have many children

4.The policemen are in their rooms.

5.Does he have white teeth?

1.what's this ?

=> What are these ?

2.is that her knife ?

=> Are those her kives ?

3.this woman has a child

=>This woman has children

.4.the policeman is in his room

=> The policeman is in his rooms

5.does he has a white tooth ?

=>Does he has white teeth ?

~ Hok Tốt~

giúp mikkkkkkk

1. A child ......children.................                        2. A tooth ...........teeth............
3. A man ........men...............                        4. A fish .........fishes..............
5. A box ....boxes...................                         6. A deer .........deers..............
7. A leaf ..........leaves.............                         8. A woman ....women...................
9. A watch .........watches..............                     10. An ox ..........oxes.............
11. A potato ...........potatoes............                   12. A goose .......gooses................
13. A glass ...........glasses............                     14. A mouse .....mouses..................
15. A quiz ........quizzes...............                       16. A foot .....footsteps..................
17. A book ..........books.............                      18. A roof ........roofs...............
19. A radio .....radios..................                      20. A reindeer .....reindeers..................
21. A photo .......photos................                     22. A baby ..........babies.............
23. A police man...police men....................              24. A toy ......toys.................
25. A bike ............bikes...........                        26. A teacher .......teachers................
27. A duck .......................                       28. A pupil ...........pupils............
29. A dish .......................                        30. A tomato ......tomatoes.................

1. A child ........children...............                        2. A tooth ..teeth................
3. A man ..men.....................                        4. A fish ........fishes...............
5. A box ....boxes...................                         6. A deer ....deers................
7. A leaf ......leaves............                      8. A woman.women..................
9. A watch ........watches...............                   10. An ox ... oxes...................
11. A potato ........potatoes...............            12. A goose.. geese................

13. A glass ........glasses...............           14. A mouse .....mice................
15. A quiz .........quizzes..............            16. A foot .......feet................
17. A book ......books.................           18. A roof .......roofs................
19. A radio ........radios...............      20. A reindeer .....reindeers................
21. A photo ......photos.................           22. A baby ....babies...................
23. A police man.....policemen................     24. A toy .......toys................

25. A bike .........bikes..............          26. A teacher .........teachers..............
27. A duck ........ducks...............        28. A pupil .....people..................
29. A dish .......dishes................         30. A tomato .........tomatoes............

They are beautiful ladies