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17 tháng 4 2022

1. c 2. c

VII. Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions. Right now, a private company is developing something called ET3. ET3 stands for Evacuated Tube Transport Technology. The ET3 system would reportedly be able to take passengers from New York to Beijing in just two hours. Here is how it works. A vacuum tube goes all the way from New York to Beijing. The tube is only a few meters, wide. Capsules move through the tube. Six...
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VII. Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions. Right now, a private company is developing something called ET3. ET3 stands for Evacuated Tube Transport Technology. The ET3 system would reportedly be able to take passengers from New York to Beijing in just two hours. Here is how it works. A vacuum tube goes all the way from New York to Beijing. The tube is only a few meters, wide. Capsules move through the tube. Six people can sit in one capsule. The capsules use electricity instead of gasoline, so it is clean. For international travel, the capsules can travel at about 6,500 kilometers per hour. That is much faster than an airplane! So how can these capsules travel so fast? The answer is that there is no air inside the tube. When airplanes fly, they have to move through the air. The air resistance slows the airplanes down. Because there is no air in the ET3 tubes, the capsules are able to move at a very high speed. Besides, the capsules are quite light. They only weigh 183 kilograms. Of course, ET3 doesn’t exist yet. Developers still have to solve a lot of problems. The biggest problem is that right now, ET3 would be far too expensive. In order to make ET3 cheaper, we will need much better technology. Maybe someday, you will be able to have lunch in New York and dinner in Beijing.

1. Why is ET3 clean?

A. It is made of a clean kind of material. B. It uses a cleaner kind of gasoline, C. It doesn’t use gasoline or electricity. D. It uses electricity.

2. The word “works” in paragraph 2 is closest in meaning to .

A. travels B. operates C. earns money D. succeeds

3. All of the following are factors that make ET3 travel fast EXCEPT. A. there is no air inside the tube B. the capsule is quite light C. traveling takes place in the air D. there is no air resistance during the trip

4. There is no air in the ET3 tubes.

A. Each ET3 capsule can carry up to six people. B. We don’t know how to build its capsules C. Speed in ET3 system is 6,500 km/h for international travel. D. ET3 can travel a little faster than an airplane. 5. What can be inferred from the passage?

A. There is still a lot to do before putting ET3 into operation. B. In the future, people will mainly use ET3 to travel abroad. C. ET3 won’t be used domestically due to its high-cost D. ET3 will soon be cheaper.

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17 tháng 4 2022

Bill hasn't made up his mind what he should bring with him on the trip to America.

Have a great day.

17 tháng 4 2022

Bill hasn't made up his mind what he should bring with him on the trip to America (make up sb's mind = decide: quyết định)

13. When the clock _______ midnight, a black cat suddenly jumps out of the cupboard. A. attacks                   B. goes                          C. strikes                      D. comes 14. The Mayans built jungle pyramids to worship their gods. Worship means ______. A. to show needs                                  C. to show wealth B. to show respect                                D. to realize dreams 15. When the performance had finished, the pianist stood up and bowed to the...
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13. When the clock _______ midnight, a black cat suddenly jumps out of the cupboard.

A. attacks                   B. goes                          C. strikes                      D. comes

14. The Mayans built jungle pyramids to worship their gods. Worship means ______.

A. to show needs                                  C. to show wealth

B. to show respect                                D. to realize dreams

15. When the performance had finished, the pianist stood up and bowed to the audience.

Bow means _______.

A. to move head backwards                         C. to move head upwards

B. to move head downwards                        D. to keep head not moving

16. When my grandfather went to a pagoda, he usually prayed for good weather.

Pray means ________.

A. to ask Gods for help                               C. to to celebrate an event

B. to ask Gods for health                            D. to show respect for Gods

Giúp mik zới các bạn thân iuuuu oi!!

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I. Complete these sentences with “could, couldn’t” or “was, were able to”. 1.  A girl fell into the river but fortunately we ________ rescue her. 2.  I_______ walk when I was less than a year old. 3.  My grandfather _______walk without any help last night. 4.  _______ you understand what he was saying? 5.  My grandmother ________ speak Spanish. 6.  Suddenly all the lights went out. We ________see a thing. 7.  The computer went wrong, but luckily Emma ________ put it right again. 8. ...
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I. Complete these sentences with “could, couldn’t” or “was, were able to”.

1.  A girl fell into the river but fortunately we ________ rescue her.

2.  I_______ walk when I was less than a year old.

3.  My grandfather _______walk without any help last night.

4.  _______ you understand what he was saying?

5.  My grandmother ________ speak Spanish.

6.  Suddenly all the lights went out. We ________see a thing.

7.  The computer went wrong, but luckily Emma ________ put it right again.

8.  There was a big party last night. You ______ hear the music half a mile away.

9.  I learnt to read sheet music as a child. I ______ read it when I was five.

10.     People heard warnings about the food, and they _______move out in time.

11.     She wasn’t at home when I phoned but I     _______ contact her at her office.

12.     Mrs Carter _______ put out the fire before the house burnt down.

13.     I looked everywhere for the books, but ______ find it.

14.     The plane ________ take off at eleven o’clock, after the fog had lifted.

15.     Jack was an excellent tennis player. He ________beat anybody.

16.     The car fell into the river. The worker ______ get it out but the driver was dead.

17.     I knew the town so I ______advise him where to go.

18.     Despite the arrival of the storm, they _______finish the football match.

19.     After his car crashes, he was so confused that he ._____tell the police who he was or where he was going.

20.     I haven’t ________ concentrate recently on work. I don’t know what it is.

Giúp tui đi tui chọn.

2
17 tháng 4 2022

giúp mình với

 

17 tháng 4 2022

1.could

3.was able to

5.could

7.was able to

9.could/was able to

10.were able to

12.was able to

14.was able to

 

17 tháng 4 2022

Giải:

Hiệu giữa chiều dài và chiều rộng là: 

40 : 2 = 20 ( m ) 

Chiều dài của hình chữ nhật đó là:

600 : 20 = 30 ( m )

Diện tích của hình chữ nhật đó là:

30 x 30 - 384 = 516 (m2)

Chúc học tốt!

17 tháng 4 2022

ai yêu mik kb nha

17 tháng 4 2022

TL: cao hay thấp

HT

17 tháng 4 2022

 

i'm tall

17 tháng 4 2022

crowded(adj): đông đúc

Covid-19 epidemic: dịch bệnh Covid-19

17 tháng 4 2022

a) a

b) an

c) The

d) more

e) most

f) than

g) the

h) in