Cho tập hợp A, hãy xác định
A ∩ A, A ∪ A, A ∩ Ø, A ∪ Ø, CAA, CAØ
Cho tập hợp A, hãy xác định A ∩ A, A ∪ A, A ∩ ∅, A ∪ ∅, CAA, CA∅
+ A ∩ A = A + A ∪ A = A
+ A ∩ ∅ = ∅ + A ∪ ∅ = A
+ CAA = A \ A = ∅ + CA∅ = A \ ∅ = A.
Bài 7: Cho hai tập hợp A =[-2; 5) và B = [-4; m]. Tìm tất cả giá trị của m để AnB khác Ø
Để \(A\cap B\ne\varnothing\Leftrightarrow m\ge-2\)
31. He went to _______ United States to learn _______ computer science.
A. Ø / Ø B. an / the C. the / Ø D. the / a
32. He has _______ good knowledge of computers.
A. a B. an C. the D. Ø
33. It was _______ excellent meal. It was better than _______ one which we had last night.
A. an / the B. a / an C. the / an D. an / an
34. He is opening his mouth _______
A. very wide B. to be very wide C. being very wide D. so very wide
35. Lightning flashed brightly _______
A. as in the sky B. when in the night sky
C. it is in the sky D. in the night sky
36. _______ is before a water shortage.
A. Being the best time to practice water conservation
B. When the best time to practice water conservation
C. The best time practice water conservation
D. The best time to practice water conservation
37. The children went _______
A. yesterday afternoon to a film B. to a film yesterday afternoon
C. to a film afternoon yesterday D. afternoon yesterday to a film
38. The infection was probably caused _______
A. in contaminated water by swimming
B. by swimming in contaminated water
C. in water contaminated by swimming
D. by swimming in water contaminated
39. I will buy _______ when I get the salary.
A. a new English dictionary B. an English new dictionary
C. a new dictionary English D. an English dictionary new
31. He went to _______ United States to learn _______ computer science.
A. Ø / Ø B. an / the C. the / Ø D. the / a
32. He has _______ good knowledge of computers.
A. a B. an C. the D. Ø
33. It was _______ excellent meal. It was better than _______ one which we had last night.
A. an / the B. a / an C. the / an D. an / an
34. He is opening his mouth _______
A. very wide B. to be very wide C. being very wide D. so very wide
35. Lightning flashed brightly _______
A. as in the sky B. when in the night sky
C. it is in the sky D. in the night sky
36. _______ is before a water shortage.
A. Being the best time to practice water conservation
B. When the best time to practice water conservation
C. The best time practice water conservation
D. The best time to practice water conservation
37. The children went _______
A. yesterday afternoon to a film B. to a film yesterday afternoon
C. to a film afternoon yesterday D. afternoon yesterday to a film
38. The infection was probably caused _______
A. in contaminated water by swimming
B. by swimming in contaminated water
C. in water contaminated by swimming
D. by swimming in water contaminated
39. I will buy _______ when I get the salary.
A. a new English dictionary B. an English new dictionary
C. a new dictionary English D. an English dictionary new
1. The ethnic minority that I know best about is (a/ an/ the/ Ø) Tay.
2. Their communal house is located in (a/ an/ the/ Ø) center of the village.
3. Many people think consider (a/ an/ the Ø) Gong sounds as (a/ an/ the/ Ø) means to communicate with the deities and Gods.
4. (a/ an/ the/ Ø) Thai have (a/ an/ the/ Ø) valuable legacy of myths, legends, ancient tales, versed stories, and folksongs.
5. People in this village (a/ an/ the/ Ø) weave cloth, and produce (a/ an/ the/ Ø) ceramic ware.
hãy chuyển những câu sau thành câu tường thuật:
1. “Prepare for the text tomorrow,Mai”
Ø He asked ....
2. “Don’t forget to bring me a cake”
Ø Tom told me ....
3. “Open your books,please”
Ø He asked her ....
4. “Show me your tickets”
Ø He told her .....
5. “Phone me tonight”
Ø I asked him ......
1. He asked Mai to prepare for the text the next day.
2. Tom told me not to forget to bring him a cake.
3. He asked her to open her books.
4. He told her to show him her tickets.
5. I asked him to phone him that night.
31. When I was at _______ Cambridge University, I study _______ Physics.
A. Ø / Ø B. the / the C. the / a D. Ø / the
32. At _______ beginning of the twentieth century, Los Angeles became _______ popular immigrant destination.
A. the / a B. Ø / the C. Ø / Ø D. an / the
33. _______ amazing thing happened to me yesterday. _______ man mistook me for his girlfriend.
A. The / An B. An / A C. A / The D. The / Ø
34. _______ were rescued by the firemen.
A. As the earthquake’s last three men
B. The earthquake with the last three victims
C. Being the last three victims of the earthquake
D. The last three victims of the earthquake
35. _______, he could not go to school on that day.
A. Ill B. To be ill C. As being ill D. Being ill
36. _______, she ran into the room.
A. Frighten, hear the news B. Hearing a noise, after frightened
C. She frightened, hearing a noise D. Frightened, after hearing a noise
37. The government is very worried about the increase of _______.
A. the youth unemployment rate B. the unemployment youth rate
C. the rate youth unemployment D. the youth rate unemployment
38. Chopin, _______, died at Place Vendome.
A. a composer worldwide famous B. a composer famous worldwide
C. a worldwide famous composer D. a famous worldwide composer
39. He _______ all that on his own.
A. possibly cannot have drunk B. cannot have possibly drunk
C. cannot possibly have drunk D. cannot have drunk possibly
40. My favorite place to be midnight on Halloween is _______ home with a scary movie _______ TV.
A. in / in / from B. at / at / on C. for / on / in D. on / over / at
41. We have seen many increases _______ production levels.
A. at B. in C. through D. on
42. Peter likes taking photographs _______ the mountains.
A. through B. of C. from D. upon
43. The burglars _______ before the police arrived.
A. made off B. took out C. went through D. ran in
44. She was _______ as a laboratory assistant.
A. taken on B. kept away C. hung over D. put off
45. The alarm will _______ automatically as soon as smoke is detected.
A. knock down B. get on C. turn over D. go off
46. The volunteers planted these trees in the park last week.
A. These trees were planted by the volunteers in the park last week.
B. These trees were planted in the park by the volunteers last week.
C. These trees were planted in the park last week by the volunteers.
D. The park was planted these trees by the volunteers last week.
47. Bowling _______ by the Dutch who colonized the New World in the 1600’s.
A. has been introduced B. was introduced
C. had been introduced D. introduced
48. The reason why the millionaire committed suicide _______ so far.
A. had not be known B. had not known
C. has not known D. has not been known
49. _______ anything stranger.
A. Has he seldom seen B. Has he seen seldom
C. Seldom has he seen D. Seldom he has seen
50. No sooner _______ dinner than _______ for a walk.
A. she had finished / she went B. she had finished / did she go
C. had she finished / she went D. had she finished / did she go
51. _______ the problem.
A. Did I understand only then B. I understood only then
C. Only then did I understand D. Only then I understood
52. “_______,” the mother warned her sons.
A. Boys, don’t go near the lake B. Boys, you will not go near the lake
C. Boys, let’s go near the lake D. Boys, you would like to go near the lake
53. John _______ him my phone number.
A. invited me to give B. suggested me giving
C. said to me to give D. told me to give
54. They have ever advised _______ the hotel for reservation.
A. me to phone and writing B. to phone and write me
C. me both phoning and writing D. me either to phone or to write
55. Frequent practice _______ you to get _______ in learning a language.
A. enables / achievement B. able / achieve
C. abilities / achieving D. disabilities / achievable
56. John did not want to be so _______, but he could not help it.
A. fright B. frighten C. frightened D. frightening
57. Her doctor advised her to do jogging because she is _______
A. weighed B. weightless C. weightlessness D. overweight
58. He told me _______ at the scene of the accident.
A. what had he seen B. what he had seen
C. that what he had seen D. whether what had he seen
59. Is it true _______?
A. that will all movies be available online
B. that all movies will be available online
C. if all movies will be available online
D. if will all movies be available online
60. _______ is none of your business.
A. What we are doing B. What are we doing
C. We are doing what D. That what we are doing
31. When I was at _______ Cambridge University, I study _______ Physics.
A. Ø / Ø B. the / the C. the / a D. Ø / the
32. At _______ beginning of the twentieth century, Los Angeles became _______ popular immigrant destination.
A. the / a B. Ø / the C. Ø / Ø D. an / the
33. _______ amazing thing happened to me yesterday. _______ man mistook me for his girlfriend.
A. The / An B. An / A C. A / The D. The / Ø
34. _______ were rescued by the firemen.
A. As the earthquake’s last three men
B. The earthquake with the last three victims
C. Being the last three victims of the earthquake
D. The last three victims of the earthquake
35. _______, he could not go to school on that day.
A. Ill B. To be ill C. As being ill D. Being ill
36. _______, she ran into the room.
A. Frighten, hear the news B. Hearing a noise, after frightened
C. She frightened, hearing a noise D. Frightened, after hearing a noise
37. The government is very worried about the increase of _______.
A. the youth unemployment rate B. the unemployment youth rate
C. the rate youth unemployment D. the youth rate unemployment
38. Chopin, _______, died at Place Vendome.
A. a composer worldwide famous B. a composer famous worldwide
C. a worldwide famous composer D. a famous worldwide composer
39. He _______ all that on his own.
A. possibly cannot have drunk B. cannot have possibly drunk
C. cannot possibly have drunk D. cannot have drunk possibly
40. My favorite place to be midnight on Halloween is _______ home with a scary movie _______ TV.
A. in / in / from B. at / at / on C. for / on / in D. on / over / at
41. We have seen many increases _______ production levels.
A. at B. in C. through D. on
42. Peter likes taking photographs _______ the mountains.
A. through B. of C. from D. upon
43. The burglars _______ before the police arrived.
A. made off B. took out C. went through D. ran in
44. She was _______ as a laboratory assistant.
A. taken on B. kept away C. hung over D. put off
45. The alarm will _______ automatically as soon as smoke is detected.
A. knock down B. get on C. turn over D. go off
46. The volunteers planted these trees in the park last week.
A. These trees were planted by the volunteers in the park last week.
B. These trees were planted in the park by the volunteers last week.
C. These trees were planted in the park last week by the volunteers.
D. The park was planted these trees by the volunteers last week.
47. Bowling _______ by the Dutch who colonized the New World in the 1600’s.
A. has been introduced B. was introduced
C. had been introduced D. introduced
48. The reason why the millionaire committed suicide _______ so far.
A. had not be known B. had not known
C. has not known D. has not been known
49. _______ anything stranger.
A. Has he seldom seen B. Has he seen seldom
C. Seldom has he seen D. Seldom he has seen
50. No sooner _______ dinner than _______ for a walk.
A. she had finished / she went B. she had finished / did she go
C. had she finished / she went D. had she finished / did she go
51. _______ the problem.
A. Did I understand only then B. I understood only then
C. Only then did I understand D. Only then I understood
52. “_______,” the mother warned her sons.
A. Boys, don’t go near the lake B. Boys, you will not go near the lake
C. Boys, let’s go near the lake D. Boys, you would like to go near the lake
53. John _______ him my phone number.
A. invited me to give B. suggested me giving
C. said to me to give D. told me to give
54. They have ever advised _______ the hotel for reservation.
A. me to phone and writing B. to phone and write me
C. me both phoning and writing D. me either to phone or to write
55. Frequent practice _______ you to get _______ in learning a language.
A. enables / achievement B. able / achieve
C. abilities / achieving D. disabilities / achievable
56. John did not want to be so _______, but he could not help it.
A. fright B. frighten C. frightened D. frightening
57. Her doctor advised her to do jogging because she is _______
A. weighed B. weightless C. weightlessness D. overweight
58. He told me _______ at the scene of the accident.
A. what had he seen B. what he had seen
C. that what he had seen D. whether what had he seen
59. Is it true _______?
A. that will all movies be available online
B. that all movies will be available online
C. if all movies will be available online
D. if will all movies be available online
60. _______ is none of your business.
A. What we are doing B. What are we doing
C. We are doing what D. That what we are doing
Gọi P là tập hợp các số nguyên tố,A là tập hợp số chẵn,B là tập hợp số lẻ
A∩B=...
A∩P=...
A⊂...
Gợi ý: N;N*; {2};Ø.
Giúp mình với các bạn!
A∩B= Ø
A∩P={ 2 }
A⊂N
học tốt
Thank you bạn nha ;)
1. Chọn đáp án đúng
1.1. ……….. Statue of Liberty was a gift of friendship from ……….. France to ……….. United States.
A.the/ ø/ the B.the/the/the C. ø/the/the D. ø/ ø/ the
1.2. I am studying ……….. English and ………. .Math this term.
A.ø/the B.the/the C. the/ ø D. ø/ ø
1.3. There is ……….. umbrella in ……….. corner of the house.
A.a/a B. a/ ø C.an/the D. an/ ø
1.4. Normally, it takes us ………. .hour and ……….. half to go there
A.a/a B. an/a C. a/an D. a/ ø
1.5. Please give me ……….. cup of ……….. coffee with cream and less sugar.
A.a/a B.a/the C. the/ ø D. a/ ø
1. Chọn đáp án đúng
1.1. ……….. Statue of Liberty was a gift of friendship from ……….. France to ……….. United States.
A.the/ ø/ the B.the/the/the C. ø/the/the D. ø/ ø/ the
1.2. I am studying ……….. English and ………. .Math this term.
A.ø/the B.the/the C. the/ ø D. ø/ ø
1.3. There is ……….. umbrella in ……….. corner of the house.
A.a/a B. a/ ø C.an/the D. an/ ø
1.4. Normally, it takes us ………. .hour and ……….. half to go there
A.a/a B. an/a C. a/an D. a/ ø
1.5. Please give me ……….. cup of ……….. coffee with cream and less sugar.
A.a/a B.a/the C. the/ ø D. a/ ø
1. I had an amazing experience last night. I saw a dinosaur eating _______ meat pie in _______ London Park. A. Ø/ the B. the/ the C. the/ Ø D. Ø/ Ø 2. I hope you have _______ lovely time and good weather. But I'm not going for holiday; I'm going on _______ business. A. the/ the B. a/ Ø C. a/ a D. Ø/ a 3. He said that he had had a book but that it had been burnt in _______ fire in _______ Mr Smith's house.. A. a/ Ø B. a/ the C. a/ Ø D. the/ a 4. _______ Second Wolrd War caused heavy lost on people and propety. A. The B. An C. A D. Ø 5. _______ X-ray is a common imaging test that can help your doctor view the inside of your body. A. The B. A C. An D. Ø 6. _______Western Germany is a region in _______ west of Germany, including North Rhine- Westphalia and Hesse. A. The/ the B. Ø/ the C. Ø/ Ø D. Ø/ the 7. _______World War One ended in 1945. A. The B. Ø C. A D. An 8. _______ fast-food is more and more prevelent around the world. A. The B. A C. Those D. Ø 9. They went to _______ school to see their children. A. the B. Ø C. a D. an 10. We listened to the old man tell his story from _______ beginning to _______ end. A. the/ Ø B. the/ the C. Ø/ Ø D. Ø/ the