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20 tháng 9 2023

\(\dfrac{21}{10}-\dfrac{3}{4}-\dfrac{2}{5}=\dfrac{42}{20}-\dfrac{15}{20}-\dfrac{8}{20}\)

\(=\dfrac{42-15-8}{20}\)

\(=\dfrac{19}{20}\)

20 tháng 9 2023

mẫu số chung là 20 nên
21/10x2=42/20
3/4x2=15/20
2/5x2=8/20
lấy 42/20-15/20-8/20=19/20 nha

15 tháng 10 2016

giup m voi mai m hoc rui!!!huhuhuhuhuhukhocroikhocroikhocroi

15 tháng 10 2016

Gạch chân những từ nào?

18 tháng 11 2018

III. Give the opposite adjectives:

1. good. . . . . . .><bad . . . . . . . . . . . . . .

2.careful. . . . ><careless. . . . . . . . . . . . . . .

3. slow. . . . . .><fast . . . . . . . . . . . . . .

4. hard. . . . ><easy. . . . . . . . . . . . . . .

5. stupid. . . .><intelligent

6. Ugly. . . . . .><beautiful . . . . . . . . . . . . . . . . . .

7. easy. . . . . . ><difficult. . . . . . . . . . . . . . . . . .

8, sad. . . ><happy. . . .

9. late. . .><early

10 boring. . . . ><exciting. . . . . . . . . . . . . .

11, young. . . . . . . .><old . . . . . . . . . . .

12.small. . . . . . . .><big . . . . . . . . . . . .

13. thin. . .><fast . . . . .

14 strong. . . . . . ><weak. . . . . . . . . . . .

15. cold. . . . . . . . .><hot . . . . . . . . . . . . .

16. rich. . . . . . . . . .poor . . . . . . . . . . .

17, new. . . . . . . . . .><old. . . . . . . . . . . 18, tall><short

19, expensive. . . . . .><cheap . . . . . . . 20. clean. . . . . .><dirty . . . . . . . . . . . . . . 21. short...><long.....

18 tháng 11 2018

III

1, good >< bad

2, careful >< careless

3, slow >< fast

4, hard >< soft

5, stupid >< clever

6, ugly >< beautiful

7, easy >< difficult

8, sad >< happy

9, late >< early

10, boring >< exciting

11, young >< old

12, small >< big

13, thin >< fat

14, strong >< slim

15, cold >< hot

16, rich >< poor

17, new >< old

18, tall >< short

19, expensive >< cheap

20, clean >< polluted

21, short >< tall

11 tháng 7 2021
1. Planets, 2. Icons, 3. Lunches, 4. Trenches, 5. Bridges, 6. Pencils, 7. Feet, 8. Atrocities, 9. Branches, 10. Computers, 11. Man, 12. Theories, 13. Wishes, 14. Boys, 15. Windows, 16. Gases, 17. Walls, 18. Dinners, 19. Whiteboards, 20. Alleys, 21. Companies, 22. Babies, 23. Women, 24. ?, 25. Pullies, 26. Dragons, 27. Backpacks, 28. Professionals, 29. Clubs, 30. Novels, 31. Conversations, 32. Galleries, 33. Buttons, 34. Charms, 35. Enemies, 36. Hexes Cho mình hỏi, bạn có đọc Harry Potter bằng tiếng Anh ko? Nghe mấy từ này quen quen á. ♤•Học tốt nha•♤ =^._.^=
8 tháng 10 2016

1.Five ten.

2. half past eight

3. nine forty-five

4. a quarter past seven or seven fifteen

5.ten fifty-five

6.eleven o'clock

7.twelve fifty

8.two thirty-five

9.four o'clock

10, six forty

8 tháng 10 2016

1. 5:10

=> It's five ten

2. 8:30

=> It's half past eight

3. 9:45

=> It's a quarter to ten

4. 7:15

=> It's a quarter past seven

5. 10:55

=> It's five to eleven

6. 11:00

=> It's eleven o'clock

7. 12:50

=> It's ten to one

8. 2:35

=> It's two thirty-five

9. 4:00

=> It's four o'clock

10. 6:40

=> It's twenty to seven
29 tháng 10 2016

1. hair

2. course

3. country

4. photo

5. dance

6. paint

7. end

8. because

9. arm

10. cold

11. coy

12. climb

13. doctor

14. colour

15. summary

16. picture

17. eleven

18. watch

19. jeans

20. watch

21. begin

22. strong

29 tháng 10 2016

2. course

3. country

4. photo .

5. dance

6. paint .

7. end

8. because

9. arm

10 . cold

12 . climb

13 . doctor

14 . colour

15 . summary

16 . picture

17 . eleven

18 . watch

19 . jeans

20 . watch

21 . begin

22 . strong

27 tháng 11 2018

Bạn cứ áp dụng quy tắc:

  • sau '' since '' là thời gian đã xác định trong quá khứ ( Ex : since 1907 )
  • sau '' for '' là thời gia chưa được xác định rõ ràng ( Ex: for a long time )
27 tháng 11 2018

1.for some days

2.for a long time

3.since last month

4.for a quarter of a year

5.since he was 10

6.since last year

7.since 10 o'clock

8.for a week

9.for a year

10.for an hour

11.for 4 centorics

12.since I came

13.for many times

14.for so long time

15.since last year

16.for 10 hours

17.since 2005

18.since yesterday

19.for ages

20.for several times

21.since she came

Read the clues and fill in the missing word.Yesterday, I...1. ............. my lunch to work. (7 letters)2. ............ to do my homeword (6 letters)3. ........ the answer to a question (4 letters)4. ........ an e-mail to my friend (4 letters)5. .......... at a bus stop for 10 minutes (5 letters)6. ........ my favorite magazine (4 letters)7. ........ a picture of a tree (4 letters)8. ........ a mistake on a test (4 letters)9. ........ the pen. I still have it (4 letters)10. .......... ten...
Đọc tiếp

Read the clues and fill in the missing word.

Yesterday, I...

1. ............. my lunch to work. (7 letters)

2. ............ to do my homeword (6 letters)

3. ........ the answer to a question (4 letters)

4. ........ an e-mail to my friend (4 letters)

5. .......... at a bus stop for 10 minutes (5 letters)

6. ........ my favorite magazine (4 letters)

7. ........ a picture of a tree (4 letters)

8. ........ a mistake on a test (4 letters)

9. ........ the pen. I still have it (4 letters)

10. .......... ten dollars at a store (5 letters)

11. ............ a ball at the park (6 letters)

12. ........ in an airplane (4 letters)

13. was late, but they ........ on time (4 letters)

14. .......... my car to a park (5 letters)

15. .......... an egg on the floor (5 letters)

16. .............. about a difficult problem (7 letters)

17. ........ to the library to read a book (4 letters)

18. ........ my little brother to a cinema (4 letters)

19. .......... the blue pen, not the red one ( 5 letters)

20. ........ a baby in my arms (4 letters)

21. .......... a sock under my bed (5 letters)

22. ........ in a swimming pool (4 letters)

23. ........ my bicycle to school (4 letters)

24. .......... a glass of orange juice (5 letters)

25. ...... my homework (3 letters)

26. didn't ...... breakfast (3 letters)

27. .......... a story about a princess (5 letters)

28. ........ my key. I couldn't find it (4 letters)

29. .......... my brother's cookie (5 letters)

30. ........ to class late (4 letters)

31. .......... a strange sound at midnight (5 letters)

32. ...... very happy (3 letters)

1
25 tháng 1 2018

méo hiểu

Read the clues and fill in the missing word. Yesterday, I... 1. ............. my lunch to work. (7 letters) 2. ............ to do my homeword (6 letters) 3. ........ the answer to a question (4 letters) 4. ........ an e-mail to my friend (4 letters) 5. .......... at a bus stop for 10 minutes (5 letters) 6. ........ my favorite magazine (4 letters) 7. ........ a picture of a tree (4 letters) 8. ........ a mistake on a test (4 letters) 9. ........ the pen. I still have it (4...
Đọc tiếp

Read the clues and fill in the missing word.

Yesterday, I...

1. ............. my lunch to work. (7 letters)

2. ............ to do my homeword (6 letters)

3. ........ the answer to a question (4 letters)

4. ........ an e-mail to my friend (4 letters)

5. .......... at a bus stop for 10 minutes (5 letters)

6. ........ my favorite magazine (4 letters)

7. ........ a picture of a tree (4 letters)

8. ........ a mistake on a test (4 letters)

9. ........ the pen. I still have it (4 letters)

10. .......... ten dollars at a store (5 letters)

11. ............ a ball at the park (6 letters)

12. ........ in an airplane (4 letters)

13. was late, but they ........ on time (4 letters)

14. .......... my car to a park (5 letters)

15. .......... an egg on the floor (5 letters)

16. .............. about a difficult problem (7 letters)

17. ........ to the library to read a book (4 letters)

18. ........ my little brother to a cinema (4 letters)

19. .......... the blue pen, not the red one ( 5 letters)

20. ........ a baby in my arms (4 letters)

21. .......... a sock under my bed (5 letters)

22. ........ in a swimming pool (4 letters)

23. ........ my bicycle to school (4 letters)

24. .......... a glass of orange juice (5 letters)

25. ...... my homework (3 letters)

26. didn't ...... breakfast (3 letters)

27. .......... a story about a princess (5 letters)

28. ........ my key. I couldn't find it (4 letters)

29. .......... my brother's cookie (5 letters)

30. ........ to class late (4 letters)

31. .......... a strange sound at midnight (5 letters)

32. ...... very happy (3 letters)

1
24 tháng 1 2018

Read the clues and fill in the missing word.

Yesterday, I...

1. ......brought....... my lunch to work. (7 letters)

2. ............ to do my homeword (6 letters)

3. ....find.... the answer to a question (4 letters)

4. ....sent ... an e-mail to my friend (4 letters)

5. .......stood... at a bus stop for 10 minutes (5 letters)

6. ....read.... my favorite magazine (4 letters)

7. ...hung..... a picture of a tree (4 letters)

8. ....made.... a mistake on a test (4 letters)

9. .....gave... the pen. I still have it (4 letters)

10. ......used.... ten dollars at a store (5 letters)

11. .......played..... a ball at the park (6 letters)

12. ........ in an airplane (4 letters)

13. was late, but they ...were ..... on time (4 letters)

14. .......moved... my car to a park (5 letters)

15. .......... an egg on the floor (5 letters)

16. ............. about a difficult problem (7 letters)

17. ....went.... to the library to read a book (4 letters)

18. ....took .... my little brother to a cinema (4 letters)

19. ....what's..... the blue pen, not the red one ( 5 letters)

20. ....held ... a baby in my arms (4 letters)

21. .......... a sock under my bed (5 letters)

22. ..swam ..... in a swimming pool (4 letters)

23. ....went .... my bicycle to school (4 letters)

24. ......drank .... a glass of orange juice (5 letters)

25. ...did... my homework (3 letters)

26. didn't ...eat ... breakfast (3 letters)

27. ....wrote...... a story about a princess (5 letters)

28. ....lost .... my key. I couldn't find it (4 letters)

29. .....liked..... my brother's cookie (5 letters)

30. .....went ... to class late (4 letters)

31. .....heard..... a strange sound at midnight (5 letters)

32. ...I'm ... very happy (3 letters)

24 tháng 1 2018

Tất cả đều là Past Simple nha bạn. Vậy câu 3 sẽ là gì vậy?

Read the clues and fill in the missing word. Yesterday, I... 1. ............. my lunch to work. (7 letters) 2. ............ to do my homeword (6 letters) 3. ........ the answer to a question (4 letters) 4. ........ an e-mail to my friend (4 letters) 5. .......... at a bus stop for 10 minutes (5 letters) 6. ........ my favorite magazine (4 letters) 7. ........ a picture of a tree (4 letters) 8. ........ a mistake on a test (4 letters) 9. ........ the pen. I still have it (4...
Đọc tiếp

Read the clues and fill in the missing word.

Yesterday, I...

1. ............. my lunch to work. (7 letters)

2. ............ to do my homeword (6 letters)

3. ........ the answer to a question (4 letters)

4. ........ an e-mail to my friend (4 letters)

5. .......... at a bus stop for 10 minutes (5 letters)

6. ........ my favorite magazine (4 letters)

7. ........ a picture of a tree (4 letters)

8. ........ a mistake on a test (4 letters)

9. ........ the pen. I still have it (4 letters)

10. .......... ten dollars at a store (5 letters)

11. ............ a ball at the park (6 letters)

12. ........ in an airplane (4 letters)

13. was late, but they ........ on time (4 letters)

14. .......... my car to a park (5 letters)

15. .......... an egg on the floor (5 letters)

16. .............. about a difficult problem (7 letters)

17. ........ to the library to read a book (4 letters)

18. ........ my little brother to a cinema (4 letters)

19. .......... the blue pen, not the red one ( 5 letters)

20. ........ a baby in my arms (4 letters)

21. .......... a sock under my bed (5 letters)

22. ........ in a swimming pool (4 letters)

23. ........ my bicycle to school (4 letters)

24. .......... a glass of orange juice (5 letters)

25. ...... my homework (3 letters)

26. didn't ...... breakfast (3 letters)

27. .......... a story about a princess (5 letters)

28. ........ my key. I couldn't find it (4 letters)

29. .......... my brother's cookie (5 letters)

30. ........ to class late (4 letters)

31. .......... a strange sound at midnight (5 letters)

32. ...... very happy (3 letters)

1
24 tháng 1 2018

Read the clues and fill in the missing word.

Yesterday, I...

1. brought my lunch to work. (7 letters)

2. forgot to do my homeword (6 letters)

4. sent an e-mail to my friend (4 letters)

6. read my favorite magazine (4 letters)

7. drew a picture of a tree (4 letters)

8. made a mistake on a test (4 letters)

10. spent ten dollars at a store (5 letters)

11. bought a ball at the park (6 letters)

13. was late, but they went on time (4 letters)

14. drove my car to a park (5 letters)

17. went to the library to read a book (4 letters)

18. took my little brother to a cinema (4 letters)

19. found the blue pen, not the red one ( 5 letters)

22. swam in a swimming pool (4 letters)

23. rode my bicycle to school (4 letters)

24. drank a glass of orange juice (5 letters)

25. did my homework (3 letters)

26. didn't eat breakfast (3 letters)

28. lost my key. I couldn't find it (4 letters)

30. went to class late (4 letters)

31. heard a strange sound at midnight (5 letters)

32. was very happy (3 letters)