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mong mng giúp hic ;<PART 1- Grammar & Vocabulary Choose the best word or phrase (a, b, c or d) to fill the gap.1 My name is Juan and I _____ from Spain.a) isb) bec) ared) am2 Look at my family. This is _____ photograph.a) thereb) themc) theird) they3 This is _____ computer.a) Davidb) David’sc) Davids’d) Davids4 I _____ work.a) sometimes go to the café afterb) to the café go sometimes afterc) go sometimes to the café’ afterd) sometimes after go to the café5 She _____ for the train at the...
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mong mng giúp hic ;<

PART 1- Grammar & Vocabulary Choose the best word or phrase (a, b, c or d) to fill the gap.

1 My name is Juan and I _____ from Spain.

a) is

b) be

c) are

d) am

2 Look at my family. This is _____ photograph.

a) there

b) them

c) their

d) they

3 This is _____ computer.

a) David

b) David’s

c) Davids’

d) Davids

4 I _____ work.

a) sometimes go to the café after

b) to the café go sometimes after

c) go sometimes to the café’ after

d) sometimes after go to the café

5 She _____ for the train at the moment.

a) waits

b) wait

c) waiting

d) is waiting

6 Where _____?

a) does he work

b) he works

c) he does work

d) works he

7 Most hospital workers _____ normal working hours.

a) have not

b) don’t have

c) doesn’t have

d) isn’t have

8 Who did _____ at the party?

a) you saw

b) you see

c) saw you

d) see 9 ‘_____ to Australia, Ginny?’

‘No, I haven’t.’

a) Did you ever go

b) Will you ever go

c) Are you ever going

d) Have you ever been

10 Tokyo is _____ city I’ve ever lived in.

a) the most big

b) the bigger

c) the biggest

d) the more big

11 Is she the woman _____ husband is a writer?

a) which

b) that

c) who

d) whose

12 The police wanted to know exactly how the money _____ stolen from the bank.

a) is

b) was

c) gets

d) did

13 By the time Mary gets here, the film _____.

a) will finish

b) is going to finish

c) will have finished

d) is finishing

14 You _____ tell anyone about this, Sara. It’s a secret, OK?

a) couldn’t

b) wouldn’t

c) mustn’t

d) don’t have to

15 I think you _____ leave now, it’s getting late.

a) can

b) would

c) will

d) should

16 I wish I _____ in such a cold country!

a) didn’t live

b) haven’t lived

c) won’t live d) am not living

17 If Jack _____ music, he wouldn’t have become a concert pianist.

a) hadn’t studied

b) didn’t study

c) wouldn’t have studied

d) hasn’t studied

18 I always go to the cinema _____ Fridays.

a) on

b) in

c) at

d) by

19 I _____ late on Saturdays.

a) get

b) get up

c) go up

d) get on

20 I’m busy on Tuesday, but I’m free on _____.

a) July

b) evenings

c) Wednesday

d) weekends

21 My phone number’s 218974. That’s _____.

a) two one nine eight seven four

b) two one seven nine four eight

c) two one eight seven four nine

d) two one eight nine seven four

22 I will _____ you tomorrow.

a) shout

b) cry

c) call

d) say

23 Hannah’s a really _____ person. She’s always smiling.

a) sensible

b) interesting

c) talkative

d) cheerful

24 I have no _____ what time the swimming pool opens.

a) belief

b) opinion

c) idea

d) feeling

25 It was a beautiful day so we went on a boat _____ on the lake. a) ride

b) travel

c) drive

d) sightseeing

26 It was a great meal, but pretty expensive. Just look at the _____!

a) ticket

b) recipe

c) invoice

d) bill

27 What time do you _____ back from work?

a) go

b) get

c) be

d) travel

28 Joel came back from his holiday in Brazil looking really _____. a) tanned

b) sunned

c) coloured

d) darkened

29 I’m not very interested _____ sports.

a) for

b) about

c) in

d) to

30 She likes _____ Japanese food.

a) to eating

b) eating

c) eat

d) is eating

31 Harry _____ his father’s car when the accident happened.

a) was driving

b) drove

c) had driven

d) has been driving

32 I was wondering _____ tell me when the next plane from Chicago arrives?

a) could you

b) can you

c) if you could

d) please

33 If I _____ you had cancelled the meeting I wouldn’t have turned up!

a) knew

b) have known

c) had known

d) know

34 I like your hair. Where _____?

a) cut you it

b) did you have it cut

c) do you cut it

d) have it cut 35 I think Joey must _____ late tonight. His office light is still on.

a) have worked

b) work

c) be working

d) to work

36 John tells me Les is eighty, _____ I find hard to believe.

a) that

b) who

c) whose

d) which

37 We _____ to the new house by the end of the week, so we won’t be here next Sunday.

a) will have moved

b) will be moving

c) will move

d) are moving

38 What _____ this weekend, Lance?

a) will you do

b) are you doing

c) will you have done

d) do you do

39 The weather has been awful. We’ve had very _____ sunshine this summer.

a) little

b) a little

c) few

d) a few

40 Did you hear what happened to Kate? She _____.

a) is arrested

b) arrested

c) has been arrested

d) is being arrested 41 I often _____ football when I’m at the beach.

a) have

b) go

c) do

d) play

42 My brother _____ the cooking in our house.

a) does

b) makes

c) cooks

d) takes

43 Don’t forget to _____ the light when you go out.

a) turn up

b) turn in

c) turn off

d) turn over

44 I hope this cut on my hand _____ quickly.

a) cures

b) heals

c) treats

d) restores

45 She just burst into _____ when she heard the sad news.

a) crying

b) tears

c) cries

d) break down

46 He _____ that he hadn’t stolen the computer, but no one believed him.

a) reassured

b) informed

c) insisted

d) persuaded

47 Could you _____ me that book for a couple of days, please?

a) lend

b) owe

c) borrow

d) rent

48 Greg is _____ a lot of time at Yvonne’s house these days!

a) taking

b) spending

c) having

d) doing

49 Who _____ in that house?

a) does he live

b) lives

c) did he live

d) he lives

50 I will call you when I _____ home.

a) get

b) will get

c) got

d) getting

51 If you _____ me, what would you do?

a) was

b) would be

c) were

d) have been

52 I don’t know where _____ last night.

a) did he go

b) he did go

c) went he

d) he went

53 John and Betty are coming to visit us tomorrow but I wish _____.

a) they won’t

b) they hadn’t

c) they didn’t

d) they weren’t

54 I’m so hungry! If only Bill _____ all the food in the fridge!

a) wasn’t eating

b) didn’t eat

c) hadn’t eaten

d) hasn’t eaten

55 I regret _____ harder in school.

a) not studying

b) not to study

c) to not study

d) not have studied

56 Surely Sue _____ you if she was unhappy with your work.

a) will tell

b) would have told

c) must have told

d) had told

57 Our neighbours aren’t very polite, and _____ particularly quiet! a) neither they aren’t

b) either they aren’t

c) nor are they

d) neither did they be 

58 We had expected that they _____ fluent English, but in fact they didn’t.

a) were speaking

b) would speak

c) had spoken

d) spoke

59 I’d rather _____ next weekend, but I do!

a) I don’t have to work

b) I didn’t have to work

c) not to work

d) no working

60 Harriet is so knowledgeable. She can talk about _____ subject you ask her to.

a) whatever

b) whenever

c) wherever

d) whoever

61 I always _____ milk in my coffee.

a) have

b) eat

c) cook

d) make

62 I don’t often _____ TV.

a) watch

b) look at

c) see

d) hear

63 Can you give me a _____ with my bag?

a) leg

b) back

c) hand

d) head

64 Before you enter the marathon, please bear in _____ that you’re not as young as you used to be!

a) thought

b) question

c) mind

d) opinion

65 The breath test showed he had consumed more than three times the legal limit of alcohol, so the police arrested him for _____.

a) trespassing

b) mugging.

c) speeding.

d) drunk driving

66 The meeting was _____ and not very interesting.

a) time-wasting

b) time-consuming

c) time-using

d) out of time

67 After the film was released, the main _____ point was its excessive use of violence.

a) discussion

b) speaking

c) conversation

d) talking

68 There have been several big _____ against the use of GM foods recently.

a) campaigns

b) issues

c) boycotts

d) strikes

1
7 tháng 3 2022

TK nhé bn https://tech12h.com/de-bai/viet-1-doan-van-tu-10-12-dong-theo-hinh-thuc-tong-phan-hop-de-neu-cam-nhan-tam-trang-nguoi-tu

2:

a: Xét tứ giác DIHK có 

\(\widehat{DIH}=\widehat{DKH}=\widehat{IDK}=90^0\)

Do đó: DIHK là hình chữ nhật

Suy ra: DH=KI(1)

Xét ΔDEF vuông tại D có DH là đường cao ứng với cạnh huyền EF

nên \(DH^2=HE\cdot HF\left(2\right)\)

Từ (1) và (2) suy ra \(IK^2=HE\cdot HF\)

Bài 5:

2: \(\sin^2B+\cos^2C\)

\(=\left(\dfrac{AC}{BC}\right)^2+\left(\dfrac{AC}{BC}\right)^2\)

\(=\dfrac{2AC^2}{BC^2}=\dfrac{2\cdot30^2}{34^2}=\dfrac{450}{289}\)

3 tháng 5 2021

mng giúp e với,mai e phải nạp rồi ạ,iu mng,mong có ai rep

 

3 tháng 5 2021

khổ nỗi mik ngu văn, hic hic

23 tháng 12 2021

e: \(E=\dfrac{x^2-9-x^2+4-x^2+9}{\left(x+3\right)\left(x-2\right)}\)

\(=\dfrac{x+2}{x+3}\)

a: \(A=\dfrac{4x^2+x^2-2x+1+x^2+2x+1}{\left(x-1\right)\left(x+1\right)}\)

\(=\dfrac{6x^2+2}{\left(x-1\right)\left(x+1\right)}\)

23 tháng 12 2021

giúp e phần C vs ạ