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10 tháng 3 2020

Been computed ? ( Minh không chắc lắm)

16 tháng 5 2018

Viết lại câu sao cho nghĩa không đổi:

Lan is the youngest of the three sisters.

Dịch: Lan là người trẻ nhất trong ba chị em.

Vậy: Lan có hai người chị.

Viết lại: Lan has two sisters.

Chúc bạn học tốt !

16 tháng 5 2018

lan has three sisters

1. world./famouscarnival / Rio / has / the / most / in / the /

Rio has the most famous carnival in the world.

2. thefestival / When / starts, //   gather /people / the / town square ./in

When the festival starts, people gather in the town square.

3. We / have / and / parties / throughout / the festival. / othercelebrations /

We have parties and other celebrations throughout the festival.

4. Houses / to celebrate / are / candles / decorated / with / to / colourfullights / Diwali./ and /

__Houses are decorated with candles and colorful lights in to celebrate Diwali.

2 tháng 3 2022

 

 

9 tháng 12 2021

I haven't been impressed by her knowledge about art

New evidence has just been discovered by the lawyer

2 tháng 12 2021

\(1.a.2Mg+O_2-^{t^o}\rightarrow2MgO\\ b.Fe+2AgNO_3\rightarrow Fe\left(NO_3\right)_2+2Ag\\ c.C_2H_4+3O_2-^{t^o}\rightarrow2CO_2+2H_2O\\ d.CuO+2HCl\rightarrow CuCl_2+H_2O\\ e.2Na+2H_2O\rightarrow2NaOH+H_2\\ f.4Al+3O_2-^{t^o}\rightarrow2Al_2O_3\)

2 tháng 12 2021

\(2.a.Magie+Axitclohidric\rightarrow MagieClorua+Hidro\\ b.Mg+2HCl\rightarrow MgCl_2+H_2\\ c.m_{Mg}+m_{HCl}=m_{MgCl_2}+m_{H_2}\\ d.m_{HCl}=m_{MgCl_2}+m_{H_2}-m_{Mg}=47,5+1-12=36,5\left(g\right)\)

16 tháng 10 2016

Let's meet inside the center,at the cafe corner

-> How about meeting inside the center, at the cafe corner ?

21 tháng 12 2016

đúng rồi ak. cảm ơn bạn ĐỨC MINH nhìu nka.....hihi

Ta có: \(A=\left(a-b\right).\left(a^2+a.b+b\right)^2\)

Hay \(A=\left[5-\left(-6\right)\right]\left[5^2+5.6+\left(-6\right)^2\right]\)

\(\Leftrightarrow A=11.\left[25+30+36\right]\)

\(\Leftrightarrow A=11.91\)

\(\Leftrightarrow A=1001\)

hok tốt!!

9 tháng 3 2020

Thay a=5; b=-6 vào biểu thức A =(a-b)(a^2+ab+b^2) ta có:

                                                 A=[5.(-6)].[5^2+5.(-6)+(-6)^2]

                                                   =(-30).[25+(-30)+36]

                                                  = (-30) .(-5+36)

                                                  =(-30).31

                                                 =-930

           Nhớ nha      

có ai biết làm bài này k giúp mình với mình đang cần rất rất gấp mong các bạn giúp cho.I/ Change the following sentences from active into passive form. 1. Somebody has taken my briefcase.=>……………………………………………………………2. The teacher returned our written work to us.=>………………………………………………….3. She had finished her report by soon.=>…………………………………………………………….4. The police have arrested five suspects.=>………………………………………………………….5. The doctor ordered him to take a long...
Đọc tiếp

có ai biết làm bài này k giúp mình với mình đang cần rất rất gấp mong các bạn giúp cho.

I/ Change the following sentences from active into passive form.

1. Somebody has taken my briefcase.=>……………………………………………………………

2. The teacher returned our written work to us.=>………………………………………………….

3. She had finished her report by soon.=>…………………………………………………………….

4. The police have arrested five suspects.=>………………………………………………………….

5. The doctor ordered him to take a long rest.=>…………………………………………………………

6. A group of students have met their friends at the rail way station.

=>……………………………………………………………………..

7. They didn’t allow Tom to take these books home.

=>……………………………………………………………..

8. The teacher won’t correct exercises tomorrow.

=>……………………………………………………………….

9. Marry has operated Tom since 10 o’clock.

=>……………………………………………………………….

10. They didn’t look after the children properly.

=>……………………………………………………………..

11. Nobody swept this street last week.=>…………………………………………………

12. People speak English all over the world.

=>……………………………………………………………

13. Tom was writing two poems.=>…………………………………………………

14. She often takes her dog for a walk.=>…………………………………………………

15. They can’t make tea with cold water.=>…………………………………………………

16. The chief engineer was instructing all the workers of the plan.

=>…………………………………………………………………….

17. Somebody has taken some of my book away.

=>……………………………………………………….

18.. They will hold the meeting before the May Day.

=>………………………………………………………………

19. The boys broke the window and took away some pictures.

=>…………………………………………………………………….

20. People spend a lot of money on advertising everyday.

->……………………………………………………………………..

II. Choose the best answer

1.I come from Canada. Where .................you..................from?

a. do.............come         b. did ...... come     c. are ..........coming        d, have .....come

2. The telephones…………..by Alexander Graham Bell

A. is invented                 B. is inventing                C. Invented           D. was invented

3. The swimming pool .............. at 9 o’clock and ............ at 18.30 everyday.

a. opens............. closes   b. opens ...... closed      c. opened...... closed    d. opened......... closes

4. Three swimmers, Paul, Ed, and Jim, ................ now in competition  for medals.

a. is                       b. has been                      c. had been            d. are

5. Listen ! I .............. somebody knocking at the front door. 

a. am hearing         b. heard                          c. have heard         d. hear

6.. ………………………………………..yet?

A. Have the letters been typed            B. Have been the letters typed

C. Have the letters typed                    D. Had the letters typed

7. At 5 o’clock yesterday evening, I ……………my clothes.

a. am ironing         b. have ironed       c. ironed               d. was ironing.

8. I ………………..along the street when I suddenly heard footsteps behind me.

a. was walking      b. am walking        c. walk                            d. walked.

9. She ………….German for two years.

a. has learnt           b. is learning         c. learn        d. learns.

10. When  I last………..Jane, she ………..to find a job.

a. see/was trying    b. saw/was trying c. have seen/tried            d. saw/tried.

12. French is a…………language to learn than English is.

        A. difficult      B. more difficult       C. most difficult        D. more and more difficult

13. The more polluted air we breathe,…….we get.

          A. the more weaker                  B. the more weak

          C. the weaker                           D. weaker more

14. The more we study, the……we are.

          A. more good                 B. better               C. better than        D. good

15. The more I tried my best to help her, ……….she became.

          A. less lazy                     B. the lazier           C. the more lazy    D. lazier

16. The weather becomes………………

          A. colder with colder                                   B. colder and colder

          C. colder and more colder                            D. more and more cold

17. The more he slept,…………….irritable he became.

          A. the most                     B. the vey more     C. much more       D. the more

18. ………..he worked, the more he earned.

          A. The more hard           B. The hard           C. The harder        D. The hardest

19. ………I get to know Jim, the more I like him.

          A. For more                    B. More                C. The more D. The most

20. The competition makes the price of goods……….

          A. most cheap and cheap                    B. cheaper and cheaper

          C. more cheap and more cheap           D. cheaper and more cheaper

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18 tháng 11 2021

C

B

18 tháng 11 2021

C

B

12 tháng 3 2020

Câu hỏi của Lưu Thị Thùy Vân - Tiếng anh lớp 8 | Học trực tuyến