Put the verbs in brackets into their correct tense or form 1The car ( rotate) ....ten times before it ( land ) ....on its roof 2 Jose (write)....a letter to his family when his pencil (break) .......

Put the verbs in brackets into their correct tense or form 1The car ( rotate) ....ten times before it ( land ) ....on i...

Hãy tham gia nhóm Học sinh Hoc24OLM

Hướng Thanh Lam

4 tháng 1 2019 lúc 10:42

A. Use the verbs in brackets in the correct tense or form: 1. He (not finish) ....... his work yet. He only (start)... an hour ago. 2. A lot of people (kill) .... by AIDS recently, and i wish nobody would die any more 3. Only yesterday I (realise)....... what was going on 4. George as well as his brothers (not go) ..... to the cinema very often. 5. What you (do)..... if you (give)...... $1,000,000? 6. There was a problem with the cellphone, but I (fix).... it now. 7. From the clink of di...

Đọc tiếp

A. Use the verbs in brackets in the correct tense or form:

1. He (not finish) ....... his work yet. He only (start)... an hour ago.

2. A lot of people (kill) .... by AIDS recently, and i wish nobody would die any more

3. Only yesterday I (realise)....... what was going on

4. George as well as his brothers (not go) ..... to the cinema very often.

5. What you (do)..... if you (give)...... $1,000,000?

6. There was a problem with the cellphone, but I (fix).... it now.

7. From the clink of dishes one can tell that super (prepare)......

8. You have read this book already. What you (think).... of it?

B. Supply the correct form of the word in capital letters:

1. Articles and reports in newspapers talk a lot about UFO (appear).....

2. If there were flying saucers, there would be traces of their (land)......

3. The (major).... of children won't be ready to stay away from home until they are in their teens.

4. The Internet has (increase) ...... develope and become a part of our everyday life.

5. Television can make things more (memory) .... because it brings both sounds and pictures.

6. Sam was accussed of stealing some (confidence0.... documents from the safe.

7. You do not have to go. Your decision must be entirely (volunteer).....

8. Most people agree that Christmas has become too (commerce).....

9. Don't leave your house (lock).... when you go out.

10. Our visit to Cuc Phuong National Park last week was an (forget).... experience.

Xem chi tiết

Lớp 9 Tiếng anh Luyện tập tổng hợp

Nguyen Tran Thao Nhi

31 tháng 8 2019 lúc 20:38

Give the correct form of the verbs in brackets 1. Almost everybody (leave) ............... by the time we (arrive) .................. 2. He(wonder) .................. whether he (leave) ........... his wallet at home. 3. The secretary (not leave) .......... until she (finish) ......... her work. 4.The couple scarcely (enter) ......had the house when they (begin) ..............to argue 5. The teacher (ask) ............ the boy why he (not do) .............. his homework. 6. She already (pos...

Đọc tiếp

Give the correct form of the verbs in brackets

1. Almost everybody (leave) ............... by the time we (arrive) ..................

2. He(wonder) .................. whether he (leave) ........... his wallet at home.

3. The secretary (not leave) .......... until she (finish) ......... her work.

4.The couple scarcely (enter) ......had the house when they (begin) ..............to argue

5. The teacher (ask) ............ the boy why he (not do) .............. his homework.

6. She already (post) .......... the letter when she (realize) ........ she (send). .................. it to the wrong address.

7. Hardly the car (go) ............. a mile when it (have)...... aflat tyre.

8. The weather (be) ............. far worse than we (expect).................

9. They (be married)......... for five years when they finally (have)............... a child

10. No sooner they (sell) ................. their car than they (regret)......having done so

Xem chi tiết

Lớp 9 Tiếng anh Luyện tập tổng hợp

Hàn Thất Băng

6 tháng 10 2019 lúc 8:40

1/ Mrs Reed (turn) _________ on the radio in her car while she (drive) _________ home yesterday. She (listen) ___________ to some music when she suddenly (hear) ___________ a siren. She (look) ____________ in her mirror and (see) _________ an ambulance behind her. She immediately (pull) ________ her car to the side of the road and (wait) _________ for the ambulance (pass) _________. 2/ My mother (call) ___________ me around 5 o’clock. My husband (come) _________ home a little after that. When h...

Đọc tiếp

1/ Mrs Reed (turn) _________ on the radio in her car while she (drive) _________ home yesterday. She (listen) ___________ to some music when she suddenly (hear) ___________ a siren. She (look) ____________ in her mirror and (see) _________ an ambulance behind her. She immediately (pull) ________ her car to the side of the road and (wait) _________ for the ambulance (pass) _________.

2/ My mother (call) ___________ me around 5 o’clock. My husband (come) _________ home a little after that. When he (come) __________ home, I (talk) ___________ to my mother on the phone.

3/ Next month I (have) _________ a week’s vacation. I (plan) _________ to take a trip. First I (go) _________ to Madison, Wisconsin to visit my brother. After I (leave) ________ Madion, I (go) _________ Chicago to see a friend who (study) _________ at a university there. She (live) _________ in Chicago for three years, so she (know) _________ her way around the city. She (promise) _________ to take me to many interesting places. I (never, be) _________ in Chicago, so I (look) _________ forward to going there.

4/ Yesterday John (eat) _____________ breakfast at 8:00. He (already, eat) _________ breakfast when he (leave) ____________ for class at 8:45. He (always, eat) _________ breakfast before he (go) _____________ to class. I (usually, not eat) _________ breakfast before I (go) _________ to class. But I (usually, get) _________ hungry about midmorning. Tomorrow before I (go) _____________ to class, I (eat) _________ breakfast.

5/ Last year, I (go) __________ mountain climbing for the first time. It was exciting and terrifying at the same time. We (move) ___________slowly and carefully, and it (take) ___________ three days to get to the top. When we climbed onto the summit, we (find) ___________ another group of climbers. They (arrive) ___________ several hours ahead of us. They (have) ___________ dinner and listening to Beethoven. We (laugh) __________ and they (invite) ___________ us to join them. The climb (be) ___________, to say the least, an unforgettable experience.

6/ The weather (be) ___________ terrible lately. It (rain) ___________ off and on for two days, and the temperature (drop) ___________ at least twenty degrees. It (be) ___________ in the low 40s right now. Just three days ago, the sun (shine) ___________ and the weather was pleasant. The weather certainly (change) ___________ quickly here. I never know what to expect. Who knows ? When I (wake) ___________ up tomorrow morning, maybe it (snow) ___________.

7/ A taxi driver (drive) ____________ along a street when he suddenly (black out) ___________ and lost control of his vehicle. The taxi (plunge) _________ into a nearby river. A hawker, who (see) ______________ the accident, rushed from his coffee stall and (dive) ___________ into the water. He (have) ___________ to swim twenty five metres before he could get to the taxi. The taxi driver (try) ______________ to wind down the window. The hawker reached into the taxi for the safety-belt. After he (release) __________ the safety-belt, he pulled the driver out through the partially open window. At the hospital, the driver (say) ____________ that the black out might (cause) ______________ by his high blood pressure condition.

8/ Marie Curie, the Polish-born chemist, was a courageous and determined woman. She (leave) ___________ her home for Paris to pursue her interest in science. Living in poverty, she still (manage) ___________ to graduate at the top of her class. She (meet) ___________ Pierre Curie shortly after graduation and (marry) ___________ him a year later.
Together, Pierre and Marie (form) ___________ the most famous husband-and-wife partnership in science history. They (discover) ___________ the radioactive elements, Polonium and Radium. They (award) ___________ the Nobel Prize for Physics in 1903.

Xem chi tiết

Lớp 9 Tiếng anh Luyện tập tổng hợp

Ngân Đại Boss

2 tháng 9 2017 lúc 8:55

Put the verbs in brackets into the correct tense form 1, Where...(Joe/go) with that gun in his hand? Oh, he...(always/carry)it with him when he goes walking in the woods 2,be quite!I...(think)Dad...(sleep)upstairs. 3,I...(not/like)cooking, but I...(love)eating 4,Why...(you/cry)?Have you hurt yourself? 5,Something...(smell)good.What...(you/cook)? 6,In autumn the leaves...(fall)from the trees. 7,...(you/hear) the latest news?A bomb...(explode) in the station ar 10 oclock this morning. 8,I...

Đọc tiếp

Put the verbs in brackets into the correct tense form

1, Where...(Joe/go) with that gun in his hand? Oh, he...(always/carry)it with him when he goes walking in the woods

2,be quite!I...(think)Dad...(sleep)upstairs.

3,I...(not/like)cooking, but I...(love)eating

4,Why...(you/cry)?Have you hurt yourself?

5,Something...(smell)good.What...(you/cook)?

6,In autumn the leaves...(fall)from the trees.

7,...(you/hear) the latest news?A bomb...(explode) in the station ar 10 o'clock this morning.

8,I can't find my diary.What...(you/do)with it?I...(put)it in your drawer last night.

9,I...(see)Steven when I was in Manchester. He...(not/change) at all.

10, She...(pass) her degree last year, then she...(get) a job in London.

11, Gary...(not/be) to work since he...(win) all that money.

12,I....(never/eat) octopus,but I...(eat)squid.

13, How many times...(you/be) to the cinema this year? I ...(go) twice in January, but I...(not/be)since then.

14, When...(Paul anh Sue/get)married? I din't know. I....(not/go)to their wedding.

15, Look at that! Someone...(leave)the fridge door open again! It...(not/be)me. I...(not/be)in the kitchen for hours.

16, I...(just/read) your composition. It's very good. How much time...(you/spend)writing it?

17,We...(look) everywhere for a purple silk shirt, but we...(not/find) one yet.

18,Oh,hello Debby!I'm sorry. I...(not recognize)you at first. You...(lose)weight!

19,I...(learn) to speak a little Spanish when I was at school, but I...(never/have to)use it until the day I...(meet) Conchita. Since that day, I ....(learn) a lot more.

20,Oh no!I think I...(break) Mim's stereo. How...(you/do) that?

21,Sally is clever. She...(speak) 5 languages.

22,I don't understand those people. What language...(they/speak)?

Giúp mk nha!!!Cần gấp

Xem chi tiết

Lớp 9 Tiếng anh Luyện tập tổng hợp

Huyền Trang Hoàng

10 tháng 5 2017 lúc 21:15

cau 1 : give the correct form of verbs given : 1 i am sorry . i ( not finish ) ................... this work yet 2 poems as well as play (write) ................. by william shakespe...

Đọc tiếp

cau 1 : give the correct form of verbs given : 1 i am sorry . i ( not finish ) ................... this work yet 2 poems as well as play (write) ................. by william shakespeare 3 how many times you (be)................... to van mieu? 4 they like (chat) ................... they use the internet very often 5 i (have) .................a phone call while i (surf) ............ the wed yesterday cau 2 : 1 in recent years , more and more people ............... for things with credit cards a pay b paid c are paying d have been paying 2 what people .................. benetton stores is that the quality is always high a like b like very much c like about d like a lot 3 paplo would like to ......................by the time he is 40 a travel b be traveling c be going to travel d have traveled 4 the world would be a better place if everyone showed ..............cooperation as john a as much b so much c too much d much 5 he turned on the tv , ................... i thought was rather surprising a and b so c that d which 6 my car would not start , ............................ jenny is started immediately a whereas b though c however d nevertheless 7 they stayed for hours , which i was very .................. a annoyed b annoyed about c annoying d annoying me 8 that was a very strange question ............................................. a you ask b you are asking c for asking d to ask 9 ..............................a movie to be entertaining , it has to have an interesting story a so that b in order that c in order for d in order to cau 2 : rewrite the following snetences : 1 would you please give me a hand ? >> would you mind ................................. ? 2 i can not understand him because he speaks so quickly >> if he did not ........................................... 3 although he took a taxi , he arrived late for the concert ..>>in spite of .................................................... 4 the suitcase is so heavy that i can not carry it >> it is such .............................................. 5 people say that he is an excellent footballer . >> he is ................................................................. 6 my mother used to make us clean the house ....>> we used ........................... 7 it is two years since i last spoke to her >> i have not ....................................... 8 going swimming in the river in the summer is interesting >> it ................................. cau 3 : give the corect form ò verbs given : 1 if he saves up , he soon ( be able ).................to afford a new car 2 what a mess! duc is toys ( not put ) .................. away 3 if you feel like (stay ) ................with us , just send us a fax 4 my sister and i (stay ) ...................... at our grandparents when we (meet ) ............our great grand aunt for the first time

Xem chi tiết

Lớp 9 Tiếng anh Luyện tập tổng hợp

Quốc Lê

24 tháng 2 2020 lúc 19:58

Give the correct form of the verbs in bracket ( Simple Past or Past Perfect). 1. She already (post) .......... the letter when she (realize) .......... she (send) .......... it to the wrong address. 2. Hardly the car (go) .......... a mile when it (have) .......... a flat tyre. 3. The weather (be) ......... far worse than we (expect) ......... 4. They (be married) ......... for five years when they finally (have) ........ a child. 5. No sooner they (sell) .......... their car than they (re...

Đọc tiếp

Give the correct form of the verbs in bracket ( Simple Past or Past Perfect).

1. She already (post) .......... the letter when she (realize) .......... she (send) .......... it to the wrong address.

2. Hardly the car (go) .......... a mile when it (have) .......... a flat tyre.

3. The weather (be) ......... far worse than we (expect) .........

4. They (be married) ......... for five years when they finally (have) ........ a child.

5. No sooner they (sell) .......... their car than they (regret) ........... having done so.

6. When she (finish) ........... her work, she (go) ........... to the cinema.

7. He (not eat) .......... until his parents (come) ............ home.

8. She (tell) ............ me she never (meet) ............... him.

9. He (do) ............... his homework before he (go) ............... out.

10. The light (go) ................ out the moment he (get) ................ into the cinema.

Xem chi tiết

Lớp 9 Tiếng anh Luyện tập tổng hợp

hsrhsrhjs

8 tháng 9 2020 lúc 8:32

I. Put the verbs in brackets in the correct tense : 1. My father (not/play)-------------------------------------any sport since last year . 2. I don’t live with my family now and we (not/see)-------------------------each other for five year 3. You ever (be)-------------------to New York? 4. We (not/begin ---------------------to study for the test yet. 5. I just (decide)------------------------to start working next week. 6. Marry left school in 2005 and up to now she (be)-------------------...

Đọc tiếp

I. Put the verbs in brackets in the correct tense :

1. My father (not/play)-------------------------------------any sport since last year .

2. I don’t live with my family now and we (not/see)-------------------------each other for five year

3. You ever (be)-------------------to New York?

4. We (not/begin ---------------------to study for the test yet.

5. I just (decide)------------------------to start working next week.

6. Marry left school in 2005 and up to now she (be)-----------------------still unemployed.

7. Jorge (already read)------------------------------the newspaper.

8. You (see)-----------------------------this movie befor?

9. She (visit)-----------------------------------Hanoi several times this year.

10. We (listen)--------------------------------------to that song many times.

II. Put the verbs in brackets in the correct tense

1. I went to the box office at lunch time,but they ……………………………(already/sell) all the tickes.

2. Was Tom at the party when you arrived? No,he---------------------(go) home .

3. After she -----------------------(fill) the basket, she went to the check out .

4. Our uncle Ho---------------------(travel) to many countries before August Revolution which took place in 1945

5. By the time he arrived, all his classmates ---------------------------(leave)

6. It rained yesterday after it ----------------------------(be) dry for months.

7.When I came , the room was in a terrible mess because someone--------------------(break in)

8. This morning his mother got angry with him because he -------------(break) her favorite vase

9. I-----------------(take) the book back to the libray when I-------------------(read) it.

10. Two days ago I------------------(meet) an old friend who I------------------(not see) for years.

Xem chi tiết

Lớp 9 Tiếng anh Luyện tập tổng hợp

Pharaoh Atem

5 tháng 8 2019 lúc 11:33

Exercise 1. Put the correct prepositions in the blanks for combination with GET Get away from Get down Get on / along with Get off Get into Get away with Get down to Get over Get off with Get back Get on Get out of Get through 1.He promised to act as chairman, so I’m afraid he can’t get ____ it now. There’s no one else to do it. 2.She is a friendly girl who gets ________ everyone she meets. 3.It took her a long time to get ______ the death of her husband. 4.I tried to ring him u...

Đọc tiếp

Exercise 1. Put the correct prepositions in the blanks for combination with GET Get away from Get down Get on / along with Get off Get into Get away with Get down to Get over Get off with Get back Get on Get out of Get through 1.He promised to act as chairman, so I’m afraid he can’t get ____ it now. There’s no one else to do it. 2.She is a friendly girl who gets ________ everyone she meets. 3.It took her a long time to get ______ the death of her husband. 4.I tried to ring him up but I couldn’t get _____ : I think some of the lines are down after last night’s storm. 5.She talks so much that it is difficult to get _______ from her. 6.Get ______ the bus at Victoria Station. 7.How are you getting _________ your work ? 8.I’m not getting _______ very fast because I can only type with two fingers. 9.We got ______ late because we missed the last train. 10.Don’t worry about my snake. He can’t get _______ his box. 11.This rainy weather is really getting me ________. 12.It’s time you got _______ some serious work. It’s very important to you. 13.Thieves raided the bank and got ________ a lot of money. 14.My boy is getting _________ bad habits, such as smokin, staying up late.... 15.We got _______ immediately after the breakfast. Exercise 2. Put the correct prepositions in the blanks for combination with GIVE Give away Give off Give over to Give up Give back Give out Give in Give oneself up 1.He won 100$ and gave it all ________. 2.Riding is getting too expensive: I’ll have to give it ________. 3.He gave _______all the books he had borrowed. 4.After 4 days of freedom, the escaped prisoner gave himself _______ to local police. 5.Your secret is safe with me. I won’t give it ________. 6.The diver’s supply of oxygen gave __ and he had to be brought to the surface as quickly as possible 7.After his fourth attemp he gave _______ trying to pass the driving test. 8.If you want to save money, give _______ eating in expensive restaurants. 9.There was a man giving _______ leaflets outside the church. 10.She gave ______ state secret to the enemy. 11.Could you give me _______ my pen when you’ve finished using it? 12.Please give your exam papers ______ to the teacher when you’ve finished! 13.The cooker is giving _______ a funny smell. 14.This big hall is given ________ meeting. 15.She’s a gusty player : she never gives __________ Exercise 3. Put the correct prepositions in the blanks for combination with GO Go away Go down with Go on Go out Go through with Go back on Go in for Go off Go round Go up Go down Go into Go over Go through Go with 1.The guard dog went ______ the intruder and knocked him down. 2.He had a sandwich and a cup of coffee, then went _______ working. 3.I went ______ the proposal very carefully with my lawyer and finally decided to to accept his offer. 4.She went ______ a beauty contest and got a prize. 5.The price of tomatoes usually goes ________ in summer in England. 6.If there isn’t enough soup to go ________, just put some hot water in it. 7.You can’t go _______ your promise now: we are depending on you. 8.They have gone _______ all the calculations again but they still can’t find the mistake. 9.The gun went ______ by accident and wounded him in the leg. 10.Mary went ______ in such a hurry that she left her passport behind. 11.Why don’t you go _______ stamp collecting if you want a quiet hobby ? 12.Her weight went ______ to 70 kilos when she stopped playing tennis. 13.When did Britain go ________ EEC ? 14.Our youngest boy has gone __________ mumps! 15.Her blouse doesn’t go _______ her skirt. 16.Finally, I’ve gone ________ all my exams! 17.Which events is he going __________ at the Olympics? 18.The first episode of the film goes ________ next Friday evening at 8 o’clock. 19.There must be a party going _______ next door. They’re making so much noise! 20.The thieves ran away when the burglar alarm went __________. Exercise 4. Put the correct prepositions in the blanks for combination with HAND, GROW, HANG, JUMP Grow on Grow up Hand down Hang about Hang on to Jump at Grow out of Hand over Hand out Hang back Jump on 1.Most of my clothes were handed _____ to me by my older brother. 2.President Bush should hand ______ power to Iraqui elected government. 3.Relief workers were handing _______ emergency rations to the survivors. 4.My daughter is growing _______ very fast. She has grown _______ all her clothes. 5.This book is very interesting. I’m sure it will grow ________ you. 6.You should keep an eye on this stranger. He has been hanging _____ our neighbourhood for hours. 7.At first, he volunteered to help me, but on second thought he was afraid and hung ______. 8.I should hang ______ those oldphotographs–they may be valuable. 9.My maths teacher really used to jump _____ us when we got our answer wrong. 10.If they offered me a job in the USA, I’d jump _______ the chance. Exercise 5. Put the correct prepositions in the blanks for combination with HOLD, KEEP Hold on Hold out Hold up Keep down Keep away Keep off Hold off Hold back Hold with Keep up with Keep back Keep up 1.“ What a terrible news!”, she just managed to hold _________ her anger. 2.I don’t hold _______ his view on education. 3.After the hold–_______, the gang made their getaway in a stolen car. 4.The survivors of the plane crash managed to hold _______ till help came. 5.Her illness is getting worse. Doctors hold ______ little hope of her recovery. 6.Could you hold ______ making decision until next week. I’m trying to find out the best solution. 7.She kept ______ working although she was very tired. 8.They lit a fire to keep wild animals __________. 9.The people in this country have been kept _______ for years by a brutal regime. 10.Keep your voices ________ : your mother is trying to get some sleep. 11.You’re all doing a spendid job. Keep _______ the good work. 12.Police warned by–standers to keep ________ from the blazing building. 13.I can’t keep ________ all the changes in computer technology. 14.She is a good secretary, but she is kept _______ by her ignorance of languages. 15.The country was in a state of rebellion and was only kept _______ by repressive measures. Exercise 6. Put the correct prepositions in the blanks for combination with LAY, LEAVE, LET, LIVE Lay down Lay up Leave out Let off (with) Live on Lay out Leave off Let down Let out Live up to 1.There is a lot of beautiful jewellery laid _______ in the shop window. 2.You should lay _______ some money in the rainy days. 3.You didn’t have any right to lay _______ such hard rules. 4.My name has been misspelt–you’ve left _______ a letter. 5.I wish you’d leave ________ complaining about my cooking. 6.The boy’s getting so fat that his trousers have to be let _____ round the waist. 7.She was let _______ with a fine instead of being sent to prison. 8.He felt he really let the team ________ when he missed the penalty. 9.Don’t let these criminals ________ lightly. 10.As he’s retired, he now lives mainly _________ his pension. 11.My exam results didn’t live _________ my expectations, 12.You can’t live ________ 22 calories a day. Exercise 7. Put the correct prepositions in the blanks for combination with LOOK 1.We are looking ____ you for your help. 2. We must look __ a bit before deciding where to buy a house 3. Police will be looking _ trouble–makers at today’s match. 4. Please look __ on me when you have free time 5.His disappearance is being looked _________ by the police. 6. Do look me __ the next time you’re in London. 6. Children always look _____ their parents. 8. She is looked __ as the leading authority on this subject 9.Who will look ______ the children while their mother is in hospital ? 10.We are so much looking __________ seeing you next week. 11.Look _______ the time of the next trainin the timetable. 12.He was looked _________ because of his humble background. 13.She looked _______ when she heard the noise behind her. 14.Tenants must look __________ the house before they decided to rent it. GIẢI NHANH MÌNH TICK CHO NHA

Xem chi tiết

Lớp 9 Tiếng anh Luyện tập tổng hợp

Mã Thu Thu

24 tháng 6 2018 lúc 21:42

Give the right forms of the verbs in brackets: Simple Past or Past Perfect. 1. He (forget) what I (tell) him. I (reind) him many times, but he still (not bring) what I (want). 2. He (ask) me whether I (see) his pen on the table. I (tell) him that I (not see) it around. 3. If I (wait) only a little while longer, I would have met her. I (not see) her since we last (meet)two years ago. 4. They (go) home after they (finish) their work. 5. He (teach) in this school before he (leave) for London....

Đọc tiếp

Give the right forms of the verbs in brackets: Simple Past or Past Perfect.

1. He (forget) what I (tell) him. I (reind) him many times, but he still (not bring) what I (want).

2. He (ask) me whether I (see) his pen on the table. I (tell) him that I (not see) it around.

3. If I (wait) only a little while longer, I would have met her. I (not see) her since we last (meet)two years ago.

4. They (go) home after they (finish) their work.

5. He (teach) in this school before he (leave) for London.

6. Daisy (agree) with other members in the last meeting.

7. OUR eacher (tell) us yesterday that he(visit) England in 1970.

8. While you (play) the piano, I (write) a letter.

9. The little girl (ASK) hat (happen) to her ice-cream.

10. I didn't recognise Mrs. Johnson. She (change) a lot.

Xem chi tiết

Lớp 9 Tiếng anh Luyện tập tổng hợp

Luyện tập tổng hợp

Khoá học trên OLM (olm.vn)

Khoá học trên OLM (olm.vn)

Luyện tập tổng hợp

Câu hỏi

Khoá học trên OLM (olm.vn)

Khoá học trên OLM (olm.vn)