vd nhé : mn là số có 2 chữ số - 556 thì bằng âm ,lớp 3 chưa học

vs lại hiệu của nó sao lại bằng tích của nó với 4453

=> đề sai hoàn toàn

Đặt A=1/101+1/102+1/103+...+1/300
vì 1/101>1/102>1/103>...>1/300
=>(1/101+1/102+1/103+...+1/200)+(1/201+1/202+1/103+...+1/300) > (1/200+1/200+1/200+...+1/200)+(1/300+1/300+1/300+...+1/300) 
=>1/101+1/102+1/103+...+1/300 > (1/200).100 + (1/300).100
=> A > 1/2+1/3
=> A > 5/6 
Mà 5/6>2/3
=> A > 2/3
Vậy 1/101+1/102+1/103+...+1/300 >2/3

III. Select the word and correct it

1. Where did you used to->use to live before you emigrated to Canada?

2. The teacher asked his students to do the exercise and not talk->and not to talk in class.

3. I know you work really hardly->hard this semester and I am proud of you.

4. We haven’t seen each other since->for two years.

5. Our team won the game because we played very good->well.

6. You should to stay in->stay in bed for a few days.

7. Ba loves play>loves playing football but Lan doesn’t.

8. The doctor asked him to not smoke->not to smoke.

9. Could you please help me solving->solve this Math problem?

10. After participating on->participating in this club, you will be more confident when speaking

11. Don’t worry so much. You child can take part of himself->take care of himself.

12. These exercises are not enough easy->exercises are not easy enough for us to finish on time

13. We are going to planting->are going to plant along the streets on weekends.

14. The students ought to learn their lessons careful->carefully before taking the exam.

15. I think you should try your best learn->should try your best to learn English because it is difficult

16. I think he isn’t old enough riding->old enough to ride a motorbike to school.

17. He left Hanoi yesterday and now he is staying at a hotel in Hanoi

18. Fortunately, we could catch the last bus and arrived to->arrived home late in the evening

VI. Word form:

1. A customer called Thanh Cong delivery………..for his furniture order.

A. serve B. servant C. service D. server

2. This naughty boy often plays …………..with matches.

A. danger B. dangerous C. endanger D. dangerously

3. Every one must notice the …………….precaution in the house.

A. safe B. unsafe C. safety D. safely

4. He repair electric appliances. He is an……………….

A. electricity B. electric C. electrical D. electrician

5. Tom played well but he was …………. to lose the match.

A. luck B. lucky C. unlucky D. luckily

6. Lan looks …………..because she gets a good mark for her English test.

A. happy B. unhappy C. happily D. happiness

7. I am very ……………..to meet you again.

A. please B. pleased C. pleasant D. pleasure

8. I love the ………….atmosphere of summer evening in the countryside.

A. peace B. peaceful C. peacefully D. peaceless

9. She dances more …………..than her sister does.

A. beauty B. beautify C. beautiful D. beautifully

10. My form father often ………………me to take part in social activities.

A. courage B. encourages C. encouraging D. encouragement

11. We were ………………enough to catch the last bus and arrived home late in the evening.

A. luck B. lucky C. unlucky D. luckily

12. Everyone in the neighborhood show their …………….. with what we have done.

A. please B. pleased C. pleasant D. pleasure

13. A fairy appeared and …………….changed Little Pea’s rags into new clothes.

A. magic B. magical C. magically D. magician

14. Minh has collected stamps for years and he has a fine stamp …………

A. collected B. collecting C. collection D. collector

16. Because Mr. Long drove....................., he caused an accidents last month.

A. care B. careful C. carefully D. carelessly

17. His listening skill is……………..because he often gets bad marks.

A. satisfy B. satisfactory C. unsatisfactory D. satisfaction

18. Their children have quite …………..characters.

A. differ B. different C. difference D. differently

I. Choose the best answer to complete these sentences

1. The children are old enough to look after ______

A . themselves B. ourselves C. herself D. himself

2-He isn’t_________ get married.

A .enough old to B. old enough to C .enough old for D. old enough for

3- We -------- to go to the market and buy something for dinner.

A. must B. should C. ought D. have to

4. I’ll see you……….. Sunday , April 1st .

A. in B. on C. at D. between

5. My friends worked really………. this semester.

A. hardly B. hard C. very hardly D. bad

6. Tuan hates ……….. computer games all day

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

7. My father used……….. us to the zoo when we were young.

A .take B. to take C. took D. taking

8. Tam told his friend………..him a lift.

A. give B. to give C. giving D. gives

9. Mary was born in France. French is her……………

A. first language B. mother tongue C. foreign D. A and B

10. - Lan doesn’t talk much in public. She’s rather --------- in public.

A. reserved B. silent C. talkative. D. sociable

11- Deaf-mutes can _______speak _______hear.

A . both….and B. neither…nor C. not only… but also D . either… or

12. Hello, Can I speak .............. Peter, please ? This is Tom.

A. with B. to C. for D. out

13. These students enjoy ................ television in their free time.

A. watch B. watched C. watching D. to watch

14. Nguyen is ................ and enthusiastic because he always helps people when they need helping.

A. humorous B. sociable C. reserved D. helpful

15. The calendar is................................the clock...........................the picture.

A. between/and B. between/in C. between/to D. between/with

16. Would you like to come to the movies? ~ I’d love to, but I have to ……… my chores.

A. do B. make C. doing D. making

17. Vu’s friend ……………him to her birthday party last Saturday.

A. sent B. invented C. invited D. received

18. What are you going .............. to morrow morning? _I’m going to visit my grandma.

A. do B. doing C. to do D. did

19. You are very kind to help me._ ……………

A. Not at all B. No problem C. You’re welcome D. All are correct

20. I’m sorry, Mr. Ha is out. Would you like………….him a message?

A. leave B. to leave C. left D. leaving

21. Edison’s................ were very useful and they help our life much better.

A. invention B. invented C. invent D. inventive

22. Bao is ................ because he always tells jokes to make people laugh a lot.

A. helpful B. sociable C. reserved D. humorous

23. The Moon ................ around the Earth.

A. to move B. moves C. moving D. moved

24. She has……………………hair.
A. long brown straight B. brown long straight C. long straight brown D. brown straight long

25. Mai is a lazy girl. She rarely………her room and it is very untidy.

A. tidies B. sweeps C. clean D. feeds

26.You ought………………. harder to make your parents happy.

A.to study B. study C. studying D. studied

27. They didn’t have…………….. a car. They are not rich.

A. enough money to buy B. money enough to buy

C. money enough buying D. enough money for them to buy

28. The chairs are around the table, so the table is ……………..the chairs.

A. between B. behind C. above D. among

29. I was born …………May 25th 2003

A. at B. on C. in D. with

30. It is often sunny and hot………..summer.

A. at B. in C. on D. for

31. The girl living ……….35 Nguyen Hue Street is my friend.

A. at B. in C. on D.to

32. We are going to play soccer ………….....

A. last night B. tomorrow C. yesterday D. last week

33. He …………… Hanoi at 3 o’clock last Sunday.

A. went B. came C. arrived D. reach

34. Hoa ……………..a letter from her friend-Nien yesterday.

A. sent B. gave C. received D. invited

35. My mother went home late so I …………….to cook dinner myself.

A. must B. have C. had D. ought

36. Students must __________ uniform at school.

A. wearing B. wear C. to wear D. wears

37. You shouldn’t let the children ………. in the kitchen because it is a dangerous place.

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

38. I ____________ a present from my old friend on my birthday last week.

A. sent B. gave C. received D. took

39. Don’t enter the room. Pleased wait ____________ for moment.

A. inside B. downstairs C. outside D. upstairs

40. I always …………….the important words in order to pay attention them. (pay attention: chú ý)

A. pronounce B. stick C. highlight D. underline

41. People in our country ……………..our love between north and south.

A. unite B. shout C. show D. stand

42. My form teacher are always proud ____________ him because he always gets good grades .

A. about B. on C. of D. with

43. My grandfather used ____________ us to the zoo when he was alive.

A. take B. took C. taking D. to take

44. You ____________ to eat more vegetables and less meat, you are too fat.

A. ought B. should C. must D. can

45. Lan’s mother ____________ him how to cook when he was ten.

A. teach B. teaches C. has taught D. taught

46. How are you? – Oh, I am …………….tired.

A. a few B. few C. a bit D. many

47. My math result was poor, so my teacher asked me ……. ………it more.

A. improve B. to improve C. improved D. improving

48. His mother told him ………………games much because this is harmful. (harmful(adj): có hại)

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

49. They are usually free………………………...Friday to Sunday.

A. at B. on C. from D. between

50. We are free ___________ Sundays.

A. in B. with C. on D. at

51. Are you interested ________ learning English?

A. in B. to C. of D. with

52. She went to the wet market....................buy some fish.

A. so as to B. in order for C. so that D. in order that

53. The doctor advised him ........................ much wine.

A. to not drink B. not to drink C. not drink D. not drinking

54. My brother’s wedding will begin ............... 10 o’clock December 15th .

A. in B. on C. at D. by

55. Could you ........................... me a favor?- Sure, what can I do for you?

A. give B. make C. bring D. do

56. You should ................ the words you want to learn.

A. to underline B. underline C. underlining D. underlined

57. He asked me .................. him at school the next day.

A. meet B. met C. to meet D. meeting

58. We can raise funds by .....................glasses and waste paper.

A. collects B. collected C. collect D. Collecting

59. If you want to ...............for the activities, you must fill out this application form.

A. enroll B. join C. participate D. take part

60. I think you are old enough to takes...............of yourself.

A. care B. place C. part D. after

61. Can you help me ................this bag. I have hurt my arm.- Certainly, I’ll help you.

A. carry B. carrying C. carried D. taking

62. I came..................my old classmate when I was going to the supermarket last week.

A. over B. along C. by D. across

63. The prince immediately .....................in love with Little Pea.

A. took B. felt C. fell D. held

II. Choose the word that has the underlined part pronounced differently from the others

1. A. match B. safe C. pan D. transmit

2. A. change B. choose C. machine D. match

3. A. count B. council C. could D. south

4. A. rained B. followed C. walked D. imagined

5. A. beneath B. destroy C. upset D. planet

6. A. tiger B. fire C. stripe D. prince

7. A. buffalo B. rope C. wisdom D. clothes

8. A. door B. foolish C. choose D. soon

9. A. excited B. prince C. once D. escape

10. A. fairy B. train C. afraid D. wait

11. A drug B. rug C. bus D. century

12. A. steamer B. reach C. breakfast D. bead

13. A. watch B. match C. character D. chore

14. A. hour B. horse C. house D. high

15. A. tale B. rag C. match D. character

16. A. device B. education C. tidy D. fund

17. A. volunteer B. volleyball C. order D. vocabulary

18. A. started B. helped C. watched D. decided

My favorite type of fashion in clothing is very special. It makes me feel that I am the most beautiful and happiest woman in this world. That’s a wedding dress.

I love this kind of clothes because of its beauty and meaning. Wedding dresses have many colors but I like white the most. White is a symbol of purity, elegance and belief. Combining with lace and beads, wedding dresses are perfect works that people have ever made. No matter how old you are, how you look like, you are the most beautiful woman at the moment you are wearing a wedding dress with a happy smile. Wedding dresses are present at the most important event in your life, at the sacred moment you exchange marriage vows and receive a wedding ring from your groom.

The wedding dress is absolutely the most important clothes in a woman’s life.

Camels can travel as fast as horses.
(Lạc đà có thể đi nhanh như ngựa.)
A wild penguin can live 15-20 years.
(Một chú chim cánh cụt hoang dã có thể sống đến 15-20 năm)

You shouldn’t wander near the cliff. It is very dangerous.
(Bạn không nên đi lang thang gần vách đá. Nó rất nguy hiểm.)
He must be lost in the jungle.
(Anh ấy chắc hẳn là bị lạc trong rừng.)

Không được gian lận nha bạn :(

Dùng từ gợi ý viết câu hoàn chỉnh:

a. Would/mind/give/color pen, please ?

Would you mind giving me the color pen, please?

b.By/whom/be/song/write?

By whom is this song written?