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\(\left(4x+5\right)+\left(3x-19\right)=0\)

\(4x+5+3x-19=0\)

\(7x-14=0\)

\(7x=14\)

\(x=2\)

19 tháng 4 2020

4x+5+3x-19=0

<=>7x-14=0

=>x=2

học tốt

traffic lights nha bạn

chúc bạn ~hok tot~

19 tháng 4 2020

Matching the correct words with the road signs:

traffic lights

no turn right

parking

Answer : traffic lights

18 tháng 4 2020

what's in your lunchbox today?

chúc bạn học tốt!

18 tháng 4 2020

're

vì sandwiches là số nhiều mà với lại được trả lời đầu tiên 

21 tháng 4 2020

RV

1. "________ good news to me" said Tom.

A. There are

B. Those are

C. These are

D. That is

Explanation: Because news is uncountable ( Vì news ko đếm đc)

RVL

18 tháng 4 2020

There are about 7,7 billions people on the Earth

18 tháng 4 2020

Question :

How many people live on the earth ?

Answer : 

There are about 7,7 bilions people on the earth 

18 tháng 4 2020

Did you know that the Temple of Literature and the Imperial Academy is a place famous historic and cultural in Viet Nam?

1. Wave energy is a source of ____________energy.A. environment friendly B. environmental friendlyC. environmentally friendly D. environmentally friendliness2. Do you want to know how you can healthy?A. make B. have C. stay D. create3. Linh often uses her headphones when listening to music___her parents don’t like loud noise.A. so B. but C. because D. and4. ____, many teenagers say they don’t like football-one of the world’s most popular games.A. Surprise B. Surprising C. Surprisingly D....
Đọc tiếp

1. Wave energy is a source of ____________energy.

A. environment friendly B. environmental friendly

C. environmentally friendly D. environmentally friendliness

2. Do you want to know how you can healthy?

A. make B. have C. stay D. create

3. Linh often uses her headphones when listening to music___her parents don’t like loud noise.

A. so B. but C. because D. and

4. ____, many teenagers say they don’t like football-one of the world’s most popular games.

A. Surprise B. Surprising C. Surprisingly D. Surprised

5. You should pay more ……………in class.

A. part B. care C. notice D. attention

6. My mother worries who will _________ our house when we are away for our holidays.

A. see B. take after C. take care of D. look at

7. Wearing a band over the wrist allows players ________ safely.

A. playing B. to play C. play D. plays

8. In my opinion, nuclear power is not only expensive but also ____ to our environment.

A. danger B. dangerous C. risk D. disaster

9. It’s rude to ________ poorer people.

A. look up to B. look after C. look down on D. look for

10. ________ tired, I went to bed early last night.

A. Felt B. Feeling C. To feel D. Feel

11. She needs ________ how many books there are on the shelf.

A. know B. knowing C. to know D. are knowing

12. ________ is the hottest planet in the solar system.

A. Mercury B. Venus C. Mars D. Uranus

13. Liz liked ________ the dolphin and the color of the cap.

A. either B. neither C. both D. none

14. Several governments try to ____________ the use of fossil fuels.

A. reduce B. increase C. waste D. save

15. She didn’t play volleyball last week and we ________.

A. did, too B. aren’t, either C. don’t, either D. didn’t, either

16. I’m going to a wedding on Sunday. ________ is getting married.

A. A friend of me B. A friend of I C. One my friend D. A friend of mine

17. ________ the way to school, I can see a “No parking” sign.

A. On B. In C. At D. By

18. John: “Hello. Can I speak to Trang, please?” - Trang: “________”

A. Speaking. Who’s that? B. What’s the matter with you?

C. Hello, John. How are you? D. How do you do?

19. Do you like those ………… hats?

A. lovely little paper red B. lovely little red paper

C. paper lovely little red D. little lovely red paper

20. The younger you are, ________ it is to learn.

A. easier B. the easier C. easily D. the easily

21. Remember to ____________ the lights before going to bed.

A. turn B. turn off C. turn on D. stop

23. Lan lives with her grandparents but she does her ________ cooking and washing.

A. own B. private C. proper D. personal

24. __________ source of energy is the source that can’t be replaced after use.

A. Renewable B. Natural C. Effective D. Non-renewable

 

25. David: “________________” Mary: “Thank you. Goodbye”

A. Nice to meet you, Mary B. How do you do?

C. Have a good trip, Mary D. May I introduce myself. My name’s David Wilso

4
18 tháng 4 2020

ko hieu

18 tháng 4 2020

mình cx ko hỉu mấy

BÀI TẬP CHIA ĐỘNG TỪ1. My father(jog)………………..every morning.2. We (visit)………………..Huong Pagoda next week.3. She(be) …………………14 on her next birthday.4. They(live)……………….with their grandparents.5. He(have) ………………..a lot of friends.6. Mai(brush) ………………….her teeth after meals.7. I(come)…………………..back tomorrow8. She(have)……………….a meeting tonight.9. Lan (invite)………………some of her...
Đọc tiếp

BÀI TẬP CHIA ĐỘNG TỪ

1. My father(jog)………………..every morning.

2. We (visit)………………..Huong Pagoda next week.

3. She(be) …………………14 on her next birthday.

4. They(live)……………….with their grandparents.

5. He(have) ………………..a lot of friends.

6. Mai(brush) ………………….her teeth after meals.

7. I(come)…………………..back tomorrow

8. She(have)……………….a meeting tonight.

9. Lan (invite)………………some of her friendsto her birthday party on Sunday.

10. Where(be)…………………..your brothers?

11. -They (study)……………………. in the library.

12. Minh usually(play) …………………. volleyball after scholl.

13. Now he (play)………………….volleyball in the sport ground.

14. Children shouldn’t(stay)………………………up late.

15. Next year, my sister(be)……………………..a teacher.

16. I (do) ……………………my math homework at the moment.

17. Listen! The girl(play)…………………… the piano.

18. Look! The teacher (come)…………………. here.

19. I(meet)………….. her at the movie theater last night.

20. He(go) ………… to the English club every Sunday.

21. My mother(make)………………..a dress now.

22. Two years ago, she(teach) ……………in a village school.

23. What……………. you(do)…………………yesterday morning?

24. We(travel) …………….. to Hue Next month.

25. They usually(have)……………dinner at home.

26. The children(be)……………….here ten minutes ago, but at the moment they (play)……………in the yard.

27. She never (stay)............up late at night.

28. My mother(not plant)................flowers in the garden at the moment.

29. Why...........you(leave)................the party early last night?

30. Minh(not go).................to the dentist tomorrow morning.

31. Mozart(play)......................the piano when he (be)...........three.

32. She (do)……………. while her mother (watch)……………... tv last night.

33. Lan(be).............very tired when she (catch)...............a bad cold two days ago.

34. Everybody(wait)..................for the president in the hall now.

35. You should (go)...............to bed early.

36. I ………………down the street when it begin to rain (go)

37. At this time last year, I………………….an English course (attend)

38. He(not come).........................to the meeting last week.

39. My father never (take)..............medicine.

40. There(be).............nobody there when I(arrive)....................yesterday.

41. Basketball(become)......................very popular all around the world in 1990s.

42. My father(play)....................roller-skating when he(be)...........a child.

43. she never(allow).....................her children to stay up late.

44. The disease(spread)........................fast now.

45. Marconi(invent)....................the radio.

46. The children must(be)....................back by six o’clock.

47. She (go) …………………… to school everyday.

48. When we met them last year, they………… in Santiago (live)

49. A lot of people (go) ……………………… to work by car.

50. Davis never (take) -…………………….the bus to schoo

1
18 tháng 4 2020

1. jogges

2. will visit

3. will be

4. live

5. has

6. brushes

7. will come

8. is having

9. will invite

10. are

11. is studying

12. plays

13. is playing

14. stay

15. will be

16. am doing

17. is playing

18. is coming

19. met

20. goes

21. is making

22. taught

23. were/do

24. will travel

25. have

26. were/ are playing

27. stays

28. isn't planting

29. did/leave

30. won't go

31. played/was

32. did/watched

33. was/catch

34. are waiting

35. go

36. went

37. was attending

38. didn't come

39. takes

40. were/arrived

41. became

42. played/was

43. allows

44. is spreading

45. invented

46. are

47. goes

48. lived

49. go

50. takes

mk đã cố hết sức

mik nghĩ đáp án này đúng đấy

nhớ k nha

hok tốt

19 tháng 4 2020

did you know that the Temple of Literature and the Imperial Academy is the famous and historic place in Viet Nam cultural?

hc tốt :)))
 

19 tháng 4 2020

mk nghĩ là:

Did you know that the Temple of Literature and the Imperial Academy is a famous historic and cultural place in Viet Nam?

mk nghĩ là thế đấy!Sai sót j thì bn bỏ qua cho mk nha!