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Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate

It is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never completed, but it showed the nation the feasibility of canals. As the country expanded westward, settlers in western New York, Pennsylvania, and Ohio needed a means to ship goods. Canals linking natural waterways seemed to supply an effective method .In 1791, engineers commissioned by the state of New York investigated the possibility of a canal between Albany on the Hudson River and Buffalo on Lake Eric to link the Great Lakes area with the Atlantic seacoast. It would avoid the mountains that served as a barrier to canals from the Delaware and Potomac rivers.

The first attempt to dig the canal, to be called the Eric Canal, was made by private companies but only a comparatively small portion was built before the project was halted for lack of funds. The cost of the prospect was an estimated $5 million, an enormous amount for those days. There was some on-again-off-again federal funding, but this time the War of 1812 put an end to construction. In 1817, DeWitt Clinton was elected Governor of New York and persuaded the state to finance and build the canal. It was completed in 1825, costing $2 million more than expected.

The canal rapidly lived up to its sponsors' faith, quickly paying for itself through tolls. It was far more economical than any other form of transportation at the time. It permitted trade between the Great Lake region and the East coast, robbing the Mississippi River of much of its traffic. It allowed New York to supplant Boston, Philadelphia, and other eastern cities as the chief center of both domestic and foreign commerce. Cities sprang up along the canal. It also contributed in a number of ways to the North's victory over the South in the Civil War.

An expansion of the canal was planned in 1849. Increased traffic would undoubtedly have warranted its construction had it not been for the railroads.

What can be inferred about railroads in 1849 from the information in the last paragraph?

A. They were being planned but had not been built

B. They were seriously underdeveloped.

C. They had begun to compete with the Eric Canal for traffic.

D. They were weakened by the expansion of the canal.

1
23 tháng 7 2017

Đáp án là C

Đoạn 4: “Increased traffic would undoubtedly have warranted its construction had it not been for the railroads.” = Lượng giao thông tăng thêm không nghi ngờ gì đã chứng minh công trình này là đúng nếu không vì những tuyến đường sắt

Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicateIt is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never...
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Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate

It is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never completed, but it showed the nation the feasibility of canals. As the country expanded westward, settlers in western New York, Pennsylvania, and Ohio needed a means to ship goods. Canals linking natural waterways seemed to supply an effective method .In 1791, engineers commissioned by the state of New York investigated the possibility of a canal between Albany on the Hudson River and Buffalo on Lake Eric to link the Great Lakes area with the Atlantic seacoast. It would avoid the mountains that served as a barrier to canals from the Delaware and Potomac rivers.

The first attempt to dig the canal, to be called the Eric Canal, was made by private companies but only a comparatively small portion was built before the project was halted for lack of funds. The cost of the prospect was an estimated $5 million, an enormous amount for those days. There was some on-again-off-again federal funding, but this time the War of 1812 put an end to construction. In 1817, DeWitt Clinton was elected Governor of New York and persuaded the state to finance and build the canal. It was completed in 1825, costing $2 million more than expected.

The canal rapidly lived up to its sponsors' faith, quickly paying for itself through tolls. It was far more economical than any other form of transportation at the time. It permitted trade between the Great Lake region and the East coast, robbing the Mississippi River of much of its traffic. It allowed New York to supplant Boston, Philadelphia, and other eastern cities as the chief center of both domestic and foreign commerce. Cities sprang up along the canal. It also contributed in a number of ways to the North's victory over the South in the Civil War.

An expansion of the canal was planned in 1849. Increased traffic would undoubtedly have warranted its construction had it not been for the railroads.

Which of the following is NOT given as an effect of the building of the Eric Canal in paragraph 4?

A. It helped determine the outcome of the Civil War

B. It allowed the East coast to trade with the Great Lake Sea.

C. It established Boston and Philadelphia as the most important centers of trade.

D. It took water traffic away from the Mississippi River

1
11 tháng 9 2017

Đáp án là C

Câu A: “It also contributed in a number of ways to the North's victory over the South in the Civil War.” Câu B & D: “It permitted trade between the Great Lake region and the East coast, robbing the Mississippi River of much of its traffic.” 

Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicateIt is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never...
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Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate

It is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never completed, but it showed the nation the feasibility of canals. As the country expanded westward, settlers in western New York, Pennsylvania, and Ohio needed a means to ship goods. Canals linking natural waterways seemed to supply an effective method .In 1791, engineers commissioned by the state of New York investigated the possibility of a canal between Albany on the Hudson River and Buffalo on Lake Eric to link the Great Lakes area with the Atlantic seacoast. It would avoid the mountains that served as a barrier to canals from the Delaware and Potomac rivers.

The first attempt to dig the canal, to be called the Eric Canal, was made by private companies but only a comparatively small portion was built before the project was halted for lack of funds. The cost of the prospect was an estimated $5 million, an enormous amount for those days. There was some on-again-off-again federal funding, but this time the War of 1812 put an end to construction. In 1817, DeWitt Clinton was elected Governor of New York and persuaded the state to finance and build the canal. It was completed in 1825, costing $2 million more than expected.

The canal rapidly lived up to its sponsors' faith, quickly paying for itself through tolls. It was far more economical than any other form of transportation at the time. It permitted trade between the Great Lake region and the East coast, robbing the Mississippi River of much of its traffic. It allowed New York to supplant Boston, Philadelphia, and other eastern cities as the chief center of both domestic and foreign commerce. Cities sprang up along the canal. It also contributed in a number of ways to the North's victory over the South in the Civil War.

An expansion of the canal was planned in 1849. Increased traffic would undoubtedly have warranted its construction had it not been for the railroads.

The phrase "on-again-off-again" in paragraph 3 could be replaced by which of the following with the least change in the meaning?

A. ineffectual 

B. intermittent 

C. gradual 

D. unsolicited

1
10 tháng 7 2017

Đáp án là B

On-again-off-again = intermittent = gián đoạn 

Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicateIt is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never...
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Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate

It is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never completed, but it showed the nation the feasibility of canals. As the country expanded westward, settlers in western New York, Pennsylvania, and Ohio needed a means to ship goods. Canals linking natural waterways seemed to supply an effective method .In 1791, engineers commissioned by the state of New York investigated the possibility of a canal between Albany on the Hudson River and Buffalo on Lake Eric to link the Great Lakes area with the Atlantic seacoast. It would avoid the mountains that served as a barrier to canals from the Delaware and Potomac rivers.

The first attempt to dig the canal, to be called the Eric Canal, was made by private companies but only a comparatively small portion was built before the project was halted for lack of funds. The cost of the prospect was an estimated $5 million, an enormous amount for those days. There was some on-again-off-again federal funding, but this time the War of 1812 put an end to construction. In 1817, DeWitt Clinton was elected Governor of New York and persuaded the state to finance and build the canal. It was completed in 1825, costing $2 million more than expected.

The canal rapidly lived up to its sponsors' faith, quickly paying for itself through tolls. It was far more economical than any other form of transportation at the time. It permitted trade between the Great Lake region and the East coast, robbing the Mississippi River of much of its traffic. It allowed New York to supplant Boston, Philadelphia, and other eastern cities as the chief center of both domestic and foreign commerce. Cities sprang up along the canal. It also contributed in a number of ways to the North's victory over the South in the Civil War.

An expansion of the canal was planned in 1849. Increased traffic would undoubtedly have warranted its construction had it not been for the railroads.

Why does the author most likely mention George Washington in the first paragraph?

A. He successfully opened the first canal in the United States

B. He was President at the time the Eric Canal was built.

C. He was involved in pioneering efforts to build canals.

D. He commissioned engineers to study the possibility of building the Eric Canal.

1
30 tháng 8 2017

Đáp án là C

Tác giả đề cập đến George Washington trong đoạn văn đầu vì ông tham gia vào việc tiên phong cho những nỗ lực xây dựng kênh đào. (“It is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers.”)

Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicateIt is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never...
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Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate

It is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never completed, but it showed the nation the feasibility of canals. As the country expanded westward, settlers in western New York, Pennsylvania, and Ohio needed a means to ship goods. Canals linking natural waterways seemed to supply an effective method .In 1791, engineers commissioned by the state of New York investigated the possibility of a canal between Albany on the Hudson River and Buffalo on Lake Eric to link the Great Lakes area with the Atlantic seacoast. It would avoid the mountains that served as a barrier to canals from the Delaware and Potomac rivers.

The first attempt to dig the canal, to be called the Eric Canal, was made by private companies but only a comparatively small portion was built before the project was halted for lack of funds. The cost of the prospect was an estimated $5 million, an enormous amount for those days. There was some on-again-off-again federal funding, but this time the War of 1812 put an end to construction. In 1817, DeWitt Clinton was elected Governor of New York and persuaded the state to finance and build the canal. It was completed in 1825, costing $2 million more than expected.

The canal rapidly lived up to its sponsors' faith, quickly paying for itself through tolls. It was far more economical than any other form of transportation at the time. It permitted trade between the Great Lake region and the East coast, robbing the Mississippi River of much of its traffic. It allowed New York to supplant Boston, Philadelphia, and other eastern cities as the chief center of both domestic and foreign commerce. Cities sprang up along the canal. It also contributed in a number of ways to the North's victory over the South in the Civil War.

An expansion of the canal was planned in 1849. Increased traffic would undoubtedly have warranted its construction had it not been for the railroads.

According to the passage, the Eric Canal connected the _________.

A. Hudson River and Lake Eric 

B. Delaware and Potomac Rivers

C. Potomac and Ohio Rivers 

D. Atlantic Ocean and the Hudson River

1
21 tháng 11 2017

Đáp án là A

Đoạn 2: “In 1791, engineers commissioned by the state of New York investigated the possibility of a canal between Albany on the Hudson River and Buffalo on Lake Eric to link the Great Lakes area with the Atlantic seacoast.”

Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicateIt is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never...
Đọc tiếp

Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate

It is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never completed, but it showed the nation the feasibility of canals. As the country expanded westward, settlers in western New York, Pennsylvania, and Ohio needed a means to ship goods. Canals linking natural waterways seemed to supply an effective method .In 1791, engineers commissioned by the state of New York investigated the possibility of a canal between Albany on the Hudson River and Buffalo on Lake Eric to link the Great Lakes area with the Atlantic seacoast. It would avoid the mountains that served as a barrier to canals from the Delaware and Potomac rivers.

The first attempt to dig the canal, to be called the Eric Canal, was made by private companies but only a comparatively small portion was built before the project was halted for lack of funds. The cost of the prospect was an estimated $5 million, an enormous amount for those days. There was some on-again-off-again federal funding, but this time the War of 1812 put an end to construction. In 1817, DeWitt Clinton was elected Governor of New York and persuaded the state to finance and build the canal. It was completed in 1825, costing $2 million more than expected.

The canal rapidly lived up to its sponsors' faith, quickly paying for itself through tolls. It was far more economical than any other form of transportation at the time. It permitted trade between the Great Lake region and the East coast, robbing the Mississippi River of much of its traffic. It allowed New York to supplant Boston, Philadelphia, and other eastern cities as the chief center of both domestic and foreign commerce. Cities sprang up along the canal. It also contributed in a number of ways to the North's victory over the South in the Civil War.

An expansion of the canal was planned in 1849. Increased traffic would undoubtedly have warranted its construction had it not been for the railroads.

The actual cost of building the Eric Canal was_________ 

A. $5 million 

B. more than could be repaid

C. less than had been expected 

D. $7 million

1
14 tháng 12 2018

Đáp án là D

Đoạn 3: “The cost of the prospect was an estimated $5 million… It was completed in 1825, costing $2 million more than expected.” = Chi phí trong tương lai được ước tính là 5 triệu USD… Nó đã được hoàn thành vào năm 1825, tốn 2 triệu USD hơn so với lượng ước tính. => Tổng chi phí: 7 triệu USD

Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicateIt is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never...
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Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate

It is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never completed, but it showed the nation the feasibility of canals. As the country expanded westward, settlers in western New York, Pennsylvania, and Ohio needed a means to ship goods. Canals linking natural waterways seemed to supply an effective method .In 1791, engineers commissioned by the state of New York investigated the possibility of a canal between Albany on the Hudson River and Buffalo on Lake Eric to link the Great Lakes area with the Atlantic seacoast. It would avoid the mountains that served as a barrier to canals from the Delaware and Potomac rivers.

The first attempt to dig the canal, to be called the Eric Canal, was made by private companies but only a comparatively small portion was built before the project was halted for lack of funds. The cost of the prospect was an estimated $5 million, an enormous amount for those days. There was some on-again-off-again federal funding, but this time the War of 1812 put an end to construction. In 1817, DeWitt Clinton was elected Governor of New York and persuaded the state to finance and build the canal. It was completed in 1825, costing $2 million more than expected.

The canal rapidly lived up to its sponsors' faith, quickly paying for itself through tolls. It was far more economical than any other form of transportation at the time. It permitted trade between the Great Lake region and the East coast, robbing the Mississippi River of much of its traffic. It allowed New York to supplant Boston, Philadelphia, and other eastern cities as the chief center of both domestic and foreign commerce. Cities sprang up along the canal. It also contributed in a number of ways to the North's victory over the South in the Civil War.

An expansion of the canal was planned in 1849. Increased traffic would undoubtedly have warranted its construction had it not been for the railroads.

The word "tolls" in paragraph 4 is closest in meaning to which of the following

A. Links 

B. Jobs 

C. Fees 

D. Grants

1
4 tháng 8 2017

Đáp án là C

Toll = fee = phí 

Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicateIt is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never...
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Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate

It is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never completed, but it showed the nation the feasibility of canals. As the country expanded westward, settlers in western New York, Pennsylvania, and Ohio needed a means to ship goods. Canals linking natural waterways seemed to supply an effective method .In 1791, engineers commissioned by the state of New York investigated the possibility of a canal between Albany on the Hudson River and Buffalo on Lake Eric to link the Great Lakes area with the Atlantic seacoast. It would avoid the mountains that served as a barrier to canals from the Delaware and Potomac rivers.

The first attempt to dig the canal, to be called the Eric Canal, was made by private companies but only a comparatively small portion was built before the project was halted for lack of funds. The cost of the prospect was an estimated $5 million, an enormous amount for those days. There was some on-again-off-again federal funding, but this time the War of 1812 put an end to construction. In 1817, DeWitt Clinton was elected Governor of New York and persuaded the state to finance and build the canal. It was completed in 1825, costing $2 million more than expected.

The canal rapidly lived up to its sponsors' faith, quickly paying for itself through tolls. It was far more economical than any other form of transportation at the time. It permitted trade between the Great Lake region and the East coast, robbing the Mississippi River of much of its traffic. It allowed New York to supplant Boston, Philadelphia, and other eastern cities as the chief center of both domestic and foreign commerce. Cities sprang up along the canal. It also contributed in a number of ways to the North's victory over the South in the Civil War.

An expansion of the canal was planned in 1849. Increased traffic would undoubtedly have warranted its construction had it not been for the railroads.

The word "feasibility" in paragraph 1 is closest in meaning to_________ 

A. profitability 

B. capability 

C. possibility 

D. difficulty

1
25 tháng 1 2018

Đáp án là C

Feasibility = possibility = tính khả thi 

Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicateIt is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never...
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Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate

It is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never completed, but it showed the nation the feasibility of canals. As the country expanded westward, settlers in western New York, Pennsylvania, and Ohio needed a means to ship goods. Canals linking natural waterways seemed to supply an effective method .In 1791, engineers commissioned by the state of New York investigated the possibility of a canal between Albany on the Hudson River and Buffalo on Lake Eric to link the Great Lakes area with the Atlantic seacoast. It would avoid the mountains that served as a barrier to canals from the Delaware and Potomac rivers.

The first attempt to dig the canal, to be called the Eric Canal, was made by private companies but only a comparatively small portion was built before the project was halted for lack of funds. The cost of the prospect was an estimated $5 million, an enormous amount for those days. There was some on-again-off-again federal funding, but this time the War of 1812 put an end to construction. In 1817, DeWitt Clinton was elected Governor of New York and persuaded the state to finance and build the canal. It was completed in 1825, costing $2 million more than expected.

The canal rapidly lived up to its sponsors' faith, quickly paying for itself through tolls. It was far more economical than any other form of transportation at the time. It permitted trade between the Great Lake region and the East coast, robbing the Mississippi River of much of its traffic. It allowed New York to supplant Boston, Philadelphia, and other eastern cities as the chief center of both domestic and foreign commerce. Cities sprang up along the canal. It also contributed in a number of ways to the North's victory over the South in the Civil War.

An expansion of the canal was planned in 1849. Increased traffic would undoubtedly have warranted its construction had it not been for the railroads.

The completion of the Eric Canal was financed by_________ 

A. New York 

B. the federal government

C. DeWitt Clinton          

D. private company

1
3 tháng 9 2019

Đáp án là A

Đoạn 3: “In 1817, DeWitt Clinton was elected Governor of New York and persuaded the state to finance and build the canal. It was completed in 1825, costing $2 million more than expected.” 

Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicateIt is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never...
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Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate

It is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became the President, he headed the first company in the United States to build a canal, which was to connect the Ohio and Potomac rivers. It was never completed, but it showed the nation the feasibility of canals. As the country expanded westward, settlers in western New York, Pennsylvania, and Ohio needed a means to ship goods. Canals linking natural waterways seemed to supply an effective method .In 1791, engineers commissioned by the state of New York investigated the possibility of a canal between Albany on the Hudson River and Buffalo on Lake Eric to link the Great Lakes area with the Atlantic seacoast. It would avoid the mountains that served as a barrier to canals from the Delaware and Potomac rivers.

The first attempt to dig the canal, to be called the Eric Canal, was made by private companies but only a comparatively small portion was built before the project was halted for lack of funds. The cost of the prospect was an estimated $5 million, an enormous amount for those days. There was some on-again-off-again federal funding, but this time the War of 1812 put an end to construction. In 1817, DeWitt Clinton was elected Governor of New York and persuaded the state to finance and build the canal. It was completed in 1825, costing $2 million more than expected.

The canal rapidly lived up to its sponsors' faith, quickly paying for itself through tolls. It was far more economical than any other form of transportation at the time. It permitted trade between the Great Lake region and the East coast, robbing the Mississippi River of much of its traffic. It allowed New York to supplant Boston, Philadelphia, and other eastern cities as the chief center of both domestic and foreign commerce. Cities sprang up along the canal. It also contributed in a number of ways to the North's victory over the South in the Civil War.

An expansion of the canal was planned in 1849. Increased traffic would undoubtedly have warranted its construction had it not been for the railroads.

The word "warranted" in paragraph 5 is closest in meaning to _________.

A. guaranteed 

B. justified 

C. hastened 

D. prevented

1
16 tháng 11 2019

Đáp án là B

Warrant smt = justify smt = lý giải cho, chứng minh cho cái gì là đúng