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1. UFOs mean…………….flying objects. A. unidentified B. unknown C. unable D. unknown 2. Some scientists say that flying saucers might be people's………………… A. imagination B. imagine C. imaginative D. imaginary 3. Imagine someday you would live without…………… D. electricity A. electrical B. electric C. electrician 4. Tim is an…………..child D. imagination C. image A. imaginative B. imagine 5. There is no..............that he has been here. A. evidentially B. evidential C. evidence D. evident 6. The...
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1. UFOs mean…………….flying objects.
A. unidentified B. unknown C. unable D. unknown
2. Some scientists say that flying saucers might be people's…………………
A. imagination B. imagine C. imaginative D. imaginary
3. Imagine someday you would live without……………
D. electricity A. electrical B. electric C. electrician
4. Tim is an…………..child
D. imagination C. image A. imaginative B. imagine
5. There is no..............that he has been here.
A. evidentially B. evidential C. evidence D. evident
6. The disease was thought to have……………….in Africa.
A. appeared B. disappearing C. disappeared D. appearing
7. The man……………without trace
C. appeared A. disappearing B. disappeared D. appearing
8. My parents do not allow me...,so I had to stay at home.
C. going D. gone B. go A. to go
9. There………..no sounds on the moon.
A. are B. is C. was D. were
10. If there were flying saucers, there……………… traces of their landing
A. is B. will be C. are D. would be
11. Do you think you will be able………… a space trip?
C. taking A. to take B. take D. taken
12. He won't be happy if you………....come!
A. didn't B. haven't C. don't D. won't.
13. If I ……………….. a bird, I would be a dove
a. is B. were C. was D. am
14. If we became rich, we would travel………….. the world.
A. around B. on C. at D. up
15. She would come to see you if she ……...your address.
C. have D. having B. had A. has
16. Where will you go if you……....a car?
C. had D. having A. has B. walk
17. Did lan………….walk past the Mosque on her way to primary school?
A. used B. used to C. use to D. use
18. People said there……………be water on Mars.
A. might B. may C. must D. will
19. I hope he doesn't keep us ……………….
A. to wait B.waiting C. for waiting D. wait
20. Those were the days……………… we were very happy.
A. that B. of which C. about which D. when

2
5 tháng 1 2019

1. UFOs mean…………….flying objects.
A. unidentified B. unknown C. unable D. unknown
2. Some scientists say that flying saucers might be people's…………………
A. imagination B. imagine C. imaginative D. imaginary
3. Imagine someday you would live without……………
D. electricity A. electrical B. electric C. electrician
4. Tim is an…………..child
D. imagination C. image A. imaginative B. imagine
5. There is no..............that he has been here.
A. evidentially B. evidential C. evidence D. evident
6. The disease was thought to have……………….in Africa.
A. appeared B. disappearing C. disappeared D. appearing
7. The man……………without trace
C. appeared A. disappearing B. disappeared D. appearing
8. My parents do not allow me...,so I had to stay at home.
C. going D. gone B. go A. to go
9. There………..no sounds on the moon.
A. are B. is C. was D. were
10. If there were flying saucers, there……………… traces of their landing
A. is B. will be C. are D. would be
11. Do you think you will be able………… a space trip?
C. taking A. to take B. take D. taken
12. He won't be happy if you………....come!
A. didn't B. haven't C. don't D. won't.
13. If I ……………….. a bird, I would be a dove
a. is B. were C. was D. am
14. If we became rich, we would travel………….. the world.
A. around B. on C. at D. up
15. She would come to see you if she ……...your address.
C. have D. having B. had A. has
16. Where will you go if you……....a car?
C. had D. having A. have B. walk
17. Did lan………….walk past the Mosque on her way to primary school?
A. used B. used to C. use to D. use
18. People said there……………be water on Mars.
A. might B. may C. must D. will
19. I hope he doesn't keep us ……………….
A. to wait B.waiting C. for waiting D. wait
20. Those were the days……………… we were very happy.
A. that B. of which C. about which D. when

5 tháng 1 2019

1. UFOs mean…………….flying objects.
A. unidentified B. unknown C. unable D. unknown
2. Some scientists say that flying saucers might be people's…………………
A. imagination B. imagine C. imaginative D. imaginary
3. Imagine someday you would live without……………
D. electricity A. electrical B. electric C. electrician
4. Tim is an…………..child
D. imagination C. image A. imaginative B. imagine
5. There is no..............that he has been here.
A. evidentially B. evidential C. evidence D. evident
6. The disease was thought to have……………….in Africa.
A. appeared B. disappearing C. disappeared D. appearing
7. The man……………without trace
C. appeared A. disappearing B. disappeared D. appearing
8. My parents do not allow me...,so I had to stay at home.
C. going D. gone B. go A. to go
9. There………..no sounds on the moon.
A. are B. is C. was D. were
10. If there were flying saucers, there……………… traces of their landing
A. is B. will be C. are D. would be
11. Do you think you will be able………… a space trip?
C. taking A. to take B. take D. taken
12. He won't be happy if you………....come!
A. didn't B. haven't C. don't D. won't.
13. If I ……………….. a bird, I would be a dove
a. is B. were C. was D. am
14. If we became rich, we would travel………….. the world.
A. around B. on C. at D. up
15. She would come to see you if she ……...your address.
C. have D. having B. had A. has
16. Where will you go if you……....a car?
C. had D. having A. has B. have
17. Did lan………….walk past the Mosque on her way to primary school?
A. used B. used to C. use to D. use
18. People said there……………be water on Mars.
A. might B. may C. must D. will
19. I hope he doesn't keep us ……………….
A. to wait B.waiting C. for waiting D. wait
20. Those were the days……………… we were very happy.
A. that B. of which C. about which D. when

Choose the correct answer to complete the sentence:1. UFOs mean .................... flying objectsA. unidentifiedB. unknownC. unableD. unknow2. Some scientists say that flying saucers might be people’s ................... .A. imaginationB. imagineC. imaginativeD. imaginary3. Imagine someday you woud live without ................... .A. electricalB. electricC. imageD. electricity4. Tim is a ............ childA. imaginativeB. imagineC. imageD. imagination5. There is no ............................
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Choose the correct answer to complete the sentence:

1. UFOs mean .................... flying objects

A. unidentified

B. unknown

C. unable

D. unknow

2. Some scientists say that flying saucers might be people’s ................... .

A. imagination

B. imagine

C. imaginative

D. imaginary

3. Imagine someday you woud live without ................... .

A. electrical

B. electric

C. image

D. electricity

4. Tim is a ............ child

A. imaginative

B. imagine

C. image

D. imagination

5. There is no ......................... that he has been here

A. evidentially

B. evidential

C. evidence

D. evident

6. The disease was thought to have ........................... in Africa

A. appeared

B.disappearing

C. disappeared

D. appearing

7. The man .......... without trace

A. disappearing

B. disappeared

C. appeared

D. appearing

8. My parents do not allow me ...................., so I had to stay at home

A. to go

B. go

C. going

D. gone

9. There ........... no sounds on the moon

A. are

B. is

C. was

D. were

3
14 tháng 3 2021

1A

2 A

3 D

4 A

5 C

6 A

7 B

8 A

9 B

14 tháng 3 2021

1. UFOs mean .................... flying objects

A. unidentified

B. unknown

C. unable

D. unknow

2. Some scientists say that flying saucers might be people’s ................... .

A. imagination

B. imagine

C. imaginative

D. imaginary

3. Imagine someday you woud live without ................... .

A. electrical

B. electric

C. image

D. electricity

4. Tim is a ............ child

A. imaginative

B. imagine

C. image

D. imagination

5. There is no ......................... that he has been here

A. evidentially

B. evidential

C. evidence

D. evident

6. The disease was thought to have ........................... in Africa

A. appeared

B.disappearing

C. disappeared

D. appearing

7. The man .......... without trace

A. disappearing

B. disappeared

C. appeared

D. appearing

8. My parents do not allow me ...................., so I had to stay at home

A. to go

B. go

C. going

D. gone

9. There ........... no sounds on the moon

A. are

B. is

C. was

D. were

Circle the best option A, B, C or D to complete the following sentences.26. UFOs mean …………………flying objects.A. unknown B. unidentified C. unable D. imaginary27. This subject, …………………, is very important.A. which is going to discuss B. that we are going to discussC. which we are going to discuss D. B and C are correct28. People said there …………………be water on Mars.A. might B. ought to C. must D. will29. Have you ever seen …………………films about UFOs?A. few B. a few C. some D. any30. After being...
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Circle the best option A, B, C or D to complete the following sentences.

26. UFOs mean …………………flying objects.

A. unknown B. unidentified C. unable D. imaginary

27. This subject, …………………, is very important.

A. which is going to discuss B. that we are going to discuss

C. which we are going to discuss D. B and C are correct

28. People said there …………………be water on Mars.

A. might B. ought to C. must D. will

29. Have you ever seen …………………films about UFOs?

A. few B. a few C. some D. any

30. After being …………………by the aliens, the men were freed.

A. looked B. watches C. seen D. examined

31. Would you please …………………him speak about the new plan?

A. allow B. let C. ask D. told

32. On the first day of our holiday we just …………………by the hotel pool.

A. enjoyed B. calmed C. comforted D. relaxed

33. The crown was set with …………………jewels – diamonds, rubies and emeralds.

A. worthless   B. precious   C. informative    D. mysterious

34. The Daily Sun is a very good newspaper because it has all latest ………………….

A. news  B. events   C. papers D. happenings

35. Since our supply water will be cut …………………for two days, I want to fill lots of buckets …………………water.

A. out - of    B. out - in    C. off - with     D. off - in

0
Circle the best option A, B, C or D to complete the following sentences.26. UFOs mean …………………flying objects.A. unknown B. unidentified C. unable D. imaginary27. This subject, …………………, is very important.A. which is going to discuss B. that we are going to discussC. which we are going to discuss D. B and C are correct28. People said there …………………be water on Mars.A. might B. ought to C. must D. will29. Have you ever seen …………………films about UFOs?A. few B. a few C. some D. any30. After...
Đọc tiếp

Circle the best option A, B, C or D to complete the following sentences.

26. UFOs mean …………………flying objects.

A. unknown B. unidentified C. unable D. imaginary

27. This subject, …………………, is very important.

A. which is going to discuss B. that we are going to discuss

C. which we are going to discuss D. B and C are correct

28. People said there …………………be water on Mars.

A. might B. ought to C. must D. will

29. Have you ever seen …………………films about UFOs?

A. few B. a few C. some D. any

30. After being …………………by the aliens, the men were freed.

A. looked B. watches C. seen D. examined

31. Would you please …………………him speak about the new plan?

A. allow B. let C. ask D. told

32. On the first day of our holiday we just …………………by the hotel pool.

A. enjoyed B. calmed C. comforted D. relaxed

33. The crown was set with …………………jewels – diamonds, rubies and emeralds.

A. worthless   B. precious   C. informative    D. mysterious

34. The Daily Sun is a very good newspaper because it has all latest ………………….

A. news  B. events   C. papers D. happenings

35. Since our supply water will be cut …………………for two days, I want to fill lots of buckets …………………water.

A. out - of    B. out - in    C. off - with     D. off - in

0
20 tháng 5 2018

objects-spacecraft-UFOs-meteor

UFOs are strange flying (1).....objects...........that some people report that they have seen in the sky and believe to be (2).........spacecraft...........from another planet. Many scientists do not believe so. They say if people see a (3)............UFO............,it might be an aircraft, a weather balloon or a (4).............meteor..... However, there is still evidence for people to believe in the existence of UFOs.

21 tháng 5 2018

cảm ơn

5 tháng 1 2019

Đáp án: A

Giải thích: Vị trí trống cần danh từ

Dịch: Một số nhà khoa học nói rằng đĩa bay có thể là trí tưởng tượng của mọi người.

Choose the best option to complete each of the following sentences. 1. UFOs means ________flying objects. A. unknown B. unidentified C. unable D. unimaginary 2. The man ________without trace. A. disappeared B. disappearing C. appeared D. appearing 3. He is an ________pilot. A. experience B. experiment C. experienced D. experient 4. When a ________enters the earth’s atmosphere it makes a bright line in the night sky. A. moon B. UFO C. balloon D. meteor 5. Scientists say that if people...
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Choose the best option to complete each of the following sentences. 1. UFOs means ________flying objects. A. unknown B. unidentified C. unable D. unimaginary 2. The man ________without trace. A. disappeared B. disappearing C. appeared D. appearing 3. He is an ________pilot. A. experience B. experiment C. experienced D. experient 4. When a ________enters the earth’s atmosphere it makes a bright line in the night sky. A. moon B. UFO C. balloon D. meteor 5. Scientists say that if people see a UFO, it ________an aircraft. A. must be B. would be C. might be D. should be 6. Some scientists say that flying saucers might be people’s ________. A. imagination B. imagine C. imaginative D. imaginary 7. My parents did not allow me ________, so I had to stay at home. A. go B. to go C. going D. gone 8. Do you think you will be able ________a space trip A. take B. to take C. taking D. taken 9. If there were flying saucers, there ________traces of there landing. A. would be B. will be C. are D. is 10. If I ________a bird, I would be a dove. A. am B. is C. are D. were 11. She would come to see you if she ________your address. A. have B. has C. had D. having 12. Where ________you go if you had a lot of money? A. will B. would C. do D. can 13. Do you believe ________the existence of UFOs? A. on B. in C. at D. for 14. If we became rich, we would travel ________the world. A. on B. at C. in D. around 15. She was absolutely terrified ________the thought of jumping off the bridge. A. of B. with C. about D. on 16. After having a baby, a woman may ________from depression for several months. A. suffers B. suffering C. suffer D. suffered 17. If I ________wings, I wouldn’t have to take an airplane to fly home. A. had B. have C. will have D. didn’t have 18. You may also find your country and other ________places. A. interested B. uninteresting C. interest D. interesting 19. The ________is due to take off at midnight. A. airmail B. aircraft C. airport D. airline 20. There's someone at the door. Perhaps it's Peter. Peter ________at the door. A. should be B. may be C. must be D. will be 21. When you are in orbit, you'll be out of the earth's ________you're weightless. A. outside B. gravity C. atmosphere D. outskirt 22. Paul likes planting flowers. When he grows up he ________a gardener. A. will be B. should be C. might be D. must be 23. Hoa can't go with us ________she has to look after her little sister. A. because B. moreover C. as for D. therefore 24. The argument was far from________. A. conclude B. conclusive C. conclusion D. concluding

3
17 tháng 5 2021

Choose the best option to complete each of the following sentences.

1. UFOs means ________flying objects.

A. unknown B. unidentified C. unable D. unimaginary

2. The man ________without trace.

A. disappeared B. disappearing C. appeared D. appearing

3. He is an ________pilot.

A. experience B. experiment C. experienced D. experient

4. When a ________enters the earth’s atmosphere it makes a bright line in the night sky. 

A. moon B. UFO C. balloon D. meteor 

5. Scientists say that if people see a UFO, it ________an aircraft.

A. must be B. would be C. might be D. should be

6. Some scientists say that flying saucers might be people’s ________.

A. imagination B. imagine C. imaginative D. imaginary

7. My parents did not allow me ________, so I had to stay at home.

A. go B. to go C. going D. gone

8. Do you think you will be able ________a space trip

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

9. If there were flying saucers, there ________traces of there landing.

A. would be B. will be C. are D. is

10. If I ________a bird, I would be a dove.

A. am B. is C. are D. were

11. She would come to see you if she ________your address.

A. have B. has C. had D. having

12. Where ________you go if you had a lot of money?

A. will B. would C. do D. can

13. Do you believe ________the existence of UFOs?

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

14. If we became rich, we would travel ________the world.

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

15. She was absolutely terrified ________the thought of jumping off the bridge.

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

16. After having a baby, a woman may ________from depression for several months.

A. suffers B. suffering C. suffer D. suffered

17. If I ________wings, I wouldn’t have to take an airplane to fly home.

A. had B. have C. will have D. didn’t have

18. You may also find your country and other ________places.

A. interested B. uninteresting C. interest D. interesting

19. The ________is due to take off at midnight.

A. airmail B. aircraft C. airport D. airline

20. There's someone at the door. Perhaps it's Peter. Peter ________at the door.

A. should be B. may be C. must be D. will be

21. When you are in orbit, you'll be out of the earth's ________you're weightless.

A. outside B. gravity C. atmosphere D. outskirt

22. Paul likes planting flowers. When he grows up he ________a gardener.

A. will be B. should be C. might be D. must be

23. Hoa can't go with us ________she has to look after her little sister.

A. because B. moreover C. as for D. therefore

24. The argument was far from________.

A. conclude B. conclusive C. conclusion D. concluding

17 tháng 5 2021

Choose the best option to complete each of the following sentences.

1. UFOs means ________flying objects.

A. unknown B. unidentified C. unable D. unimaginary

2. The man ________without trace.

A. disappeared B. disappearing C. appeared D. appearing

3. He is an ________pilot.

A. experience B. experiment C. experienced D. experient

4. When a ________enters the earth’s atmosphere it makes a bright line in the night sky.

A. moon B. UFO C. balloon D. meteor

5. Scientists say that if people see a UFO, it ________an aircraft.

A. must be B. would be C. might be D. should be

6. Some scientists say that flying saucers might be people’s ________.

A. imagination B. imagine C. imaginative D. imaginary

7. My parents did not allow me ________, so I had to stay at home.

A. go B. to go C. going D. gone

8. Do you think you will be able ________a space trip

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

9. If there were flying saucers, there ________traces of there landing.

A. would be B. will be C. are D. is

10. If I ________a bird, I would be a dove.

A. am B. is C. are D. were

11. She would come to see you if she ________your address.

A. have B. has C. had D. having

12. Where ________you go if you had a lot of money?

A. will B. would C. do D. can

13. Do you believe ________the existence of UFOs?

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

14. If we became rich, we would travel ________the world.

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

15. She was absolutely terrified ________the thought of jumping off the bridge.

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

16. After having a baby, a woman may ________from depression for several months.

A. suffers B. suffering C. suffer D. suffered

17. If I ________wings, I wouldn’t have to take an airplane to fly home.

A. had B. have C. will have D. didn’t have

18. You may also find your country and other ________places.

A. interested B. uninteresting C. interest D. interesting

19. The ________is due to take off at midnight.

A. airmail B. aircraft C. airport D. airline

20. There's someone at the door. Perhaps it's Peter. Peter ________at the door.

A. should be B. may be C. must be D. will be

21. When you are in orbit, you'll be out of the earth's ________you're weightless.

A. outside B. gravity C. atmosphere D. outskirt

22. Paul likes planting flowers. When he grows up he ________a gardener.

A. will be B. should be C. might be D. must be

23. Hoa can't go with us ________she has to look after her little sister.

A. because B. moreover C. as for D. therefore

24. The argument was far from________.

A. conclude B. conclusive C. conclusion D. concluding

READ.UFOs are strange flying objects that some people report they have seen in the sky and believed to be spacecraft from another planet. Many scientists do not believe so. They say that if people see a UFO, it might be an aircraft, a weather balloon or meteor. However, there is still evidence for people to believe in the existence of UFOs.In 1947, Kenneth Arnold, an experienced pilot in the USA, reported that he saw nine large round objects traveling at about 2, 800 meters an hour to the left...
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READ.

UFOs are strange flying objects that some people report they have seen in the sky and believed to be spacecraft from another planet. Many scientists do not believe so. They say that if people see a UFO, it might be an aircraft, a weather balloon or meteor. However, there is still evidence for people to believe in the existence of UFOs.

In 1947, Kenneth Arnold, an experienced pilot in the USA, reported that he saw nine large round objects traveling at about 2, 800 meters an hour to the left and north of Mount Rainier.

In 1952, there were more than 1,500 UFO sightings around the world.

In 1954, a woman and her children believed they saw a UFO above their house. The woman said she saw two aliens in the spacecraft.

In 1964, a farmer claimed he saw an egg-shaped object in one of his fields and also aliens collecting soil samples.

In 1971, two men claimed they were captured by aliens and taken abroad a spacecraft. After being examined by the aliens, the men were free.

In 1978, a young pilot and his plane disappeared after sighting a UFO.

In 1981, Renato Nicolai, who was living in the south east of France, reported that he saw a plate-like device at a treetop 30 meters away from his garden.

* Find the words in the text having the following meanings. 

21. proof, support …………………………… 

22. falling star, or shooting star …………………………… 

23. unknown / strange people or things …………………………… 

24. bringing together or gathering …………………………… 

25. caught as a prisoner …………………………… 

26. became impossible to see …………………………… 

** Complete the notes.

27. …………………………………………………… or …………………can be mistaken for an alien spacecraft.

28. In 1947, a pilot saw …………………………………………………………………………………………….

29. There were over …………………………………worldwide in 1952.

30. In 1954, a woman and her children ……………………………………house.

31. A farmer saw ……………………………………………………………………………………………………… in 1964.

32. In 1971, two men ………………………………………………………………………………………………….

33. A pilot ……………………………………………………………………in 1978. 

34. In 1981, a Frenchman reported ………………………………………………………………………………… from his garden.

0
1-10) Choose the word or phrase that best fits the blank space in each sentence: 1/ The story about UFOs caught the ___________ of the whole class . A. decision B. imagination C. evidence D. science 2/ There’s no _____________ that life exists on other planets. A. creature B. experience C. evidence D. condition 3/ The satellite moves around the earth’s _________ round the sun. A. surface B. path C. space D. orbit 4/ My grandfather is keen __________ growing fruit trees. A. of B. in C....
Đọc tiếp

1-10) Choose the word or phrase that best fits the blank space in each sentence:

1/ The story about UFOs caught the ___________ of the whole class .

A. decision B. imagination C. evidence D. science

2/ There’s no _____________ that life exists on other planets.

A. creature B. experience C. evidence D. condition

3/ The satellite moves around the earth’s _________ round the sun.

A. surface B. path C. space D. orbit

4/ My grandfather is keen __________ growing fruit trees.

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

5/ Articles and reports in newspapers talk lots about UFO _____________ .

A. shapes B. balloons C. appearance D. exposition

6/ People are talking about the __________ circles on the fields in The Great Britain.

A. secret B. mysterious C. marvelous D. excellent

7/ UFO’s mean ___________ flying objects.

A. unsafe B. unknown C. unable D. unidentified

8/ Some scientists and government want to send ___________ to Mars.

A. pilots B. aliens C. astronauts D. students

9/ What scenes on the earth can you see from __________ space.

A. out B. outer C. upper D. inner

10/ I think UFOs exist only in films for ___________ .

A. imagination B. persuasion C. entertainment D. introduction

1
11 tháng 12 2017

1/ The story about UFOs caught the ___________ of the whole class .

A. decision B. imagination C. evidence D. science

capture/catch someone's imagination: to make someone very interested or excited.

2/ There’s no _____________ that life exists on other planets.

A. creature B. experience C. evidence D. condition

3/ The satellite moves around the earth’s _________ round the sun.

A. surface B. path C. space D. orbit

4/ My grandfather is keen __________ growing fruit trees.

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

5/ Articles and reports in newspapers talk lots about UFO _____________ .

A. shapes B. balloons C. appearance D. exposition

6/ People are talking about the __________ circles on the fields in The Great Britain.

A. secret B. mysterious C. marvelous D. excellent

7/ UFO’s mean ___________ flying objects.

A. unsafe B. unknown C. unable D. unidentified

8/ Some scientists and government want to send ___________ to Mars.

A. pilots B. aliens C. astronauts D. students

9/ What scenes on the earth can you see from __________ space.

A. out B. outer C. upper D. inner

10/ I think UFOs exist only in films for ___________ .

A. imagination B. persuasion C. entertainment D. introduction

Read the passage below and choose one correct answer for each question.A UFO (Unidentified Flying Object) is any object flying in the sky which cannot be identified by the person who sees it. Sometimes the object is investigated. If people can still not figure out what the object is after an investigation, it is called a UFO. If they figure out what the object is, it can no longer be called a UFO because it has been identified.Even though UFOs can be anything, people often use the word UFO when...
Đọc tiếp

Read the passage below and choose one correct answer for each question.

A UFO (Unidentified Flying Object) is any object flying in the sky which cannot be identified by the person who sees it. Sometimes the object is investigated. If people can still not figure out what the object is after an investigation, it is called a UFO. If they figure out what the object is, it can no longer be called a UFO because it has been identified.

Even though UFOs can be anything, people often use the word UFO when they are talking about alien spacecraft. Flying saucer is another word that is often used to describe an unidentified flying object.

Studies estimate that 50%-90% of all reported UFO sightings are identified later. Usually 10%-20% are never identified. Studies also show that very few UFO sightings are hoaxes (people trying to trick other people). Most UFOs are actually natural or man-made objects that looked strange. 80%-90% UFOs are identified as one of three different things: astronomical causes (for example: planets, stars, or meteors); aircraft; balloons 10%-20% of UFOs are other causes (such as birds, clouds, mirages, searchlights, etc.)

What does the word “figure out” in paragraph 1 mean?

A. observe

B. explain

C. calculate

D. require

1
12 tháng 4 2017

Đáp án: C

Dịch: Figure out = calculate (tính toán)