1.
…………..not a single hard-surfaced road during the entire colonial period aside from the city.
Correct Answer
B. There was
Explanation
The correct answer is "there was". This is because the sentence is referring to the existence of hard-surfaced roads during the colonial period. The phrase "not a single" indicates that there were no hard-surfaced roads, so the correct verb form to use is "there was" to indicate a singular subject.
2.
. …………..in 1776 that Declaration of Independence was signed.
Correct Answer
A. It was
Explanation
The correct answer is "it was." This is because the sentence is referring to a specific event in the past, the signing of the Declaration of Independence in 1776. The pronoun "it" is used to refer back to this event, indicating that the signing of the Declaration of Independence was the subject of the sentence.
3.
…………..more than 300,000 people in Philadelphia by the end of the colonial period, making it the largest city in the colonies.
Correct Answer
C. There were
Explanation
The correct answer is "there were." This is because the sentence is referring to the number of people in Philadelphia, which is a plural subject. Therefore, the correct form of the verb to use is "were."
4.
In the 18th century, ………….. not many women who had access to formal
education in the colonies.
Correct Answer
A. There were
Explanation
In the 18th century, there were not many women who had access to formal education in the colonies. This implies that the number of women with access to formal education was limited during that time period.
5.
After the Revolution, although some advances were made in education, …………..a slow process.
Correct Answer
C. It was
Explanation
After the Revolution, although some advances were made in education, it was a slow process. This means that the progress in education was slow after the Revolution. The phrase "it was" refers back to the progress in education, indicating that the slow process was specifically related to education.
6.
…………..in fluorescent lamps, television tubes, and other devices.
Correct Answer
A. pHospHore are used
Explanation
Phosphors are used in fluorescent lamps, television tubes, and other devices. Phosphors are substances that emit visible light when exposed to radiation or excited by an electron beam. They are used in these devices to convert the ultraviolet or electron beam radiation into visible light, which allows for the production of bright and colorful displays.
7.
The tips of some undersea mountains …………..islands in the middle of the ocean.
Correct Answer
C. Form
Explanation
The correct answer is "form." This is because the sentence is talking about the process of the tips of undersea mountains creating islands in the middle of the ocean. The verb "form" accurately describes this process of the mountains creating the islands.
8.
…………..of fish; jawless fish, cartilaginous fish, and bony fish.
Correct Answer
B. There are three types
Explanation
The correct answer is "there are three types." This answer accurately states that there are indeed three types of fish, which are jawless fish, cartilaginous fish, and bony fish.
9.
…………..to stop yourself from blinking except for a short period of time.
Correct Answer
D. It is impossible
Explanation
The correct answer is "it is impossible" because the phrase "to stop yourself from blinking except for a short period of time" implies that the action of not blinking is not sustainable for a long time. Therefore, it is not possible to completely stop blinking except for a short period.
10.
…………..today was developed by Swiss scientist Horace de Sassure around 1773.
Correct Answer
B. Mountaineering as we know it
Explanation
The phrase "mountaineering as we know it" suggests that there is a specific understanding or concept of mountaineering that exists. This implies that mountaineering has evolved or changed over time, and the development of this understanding can be attributed to the Swiss scientist Horace de Sassure around 1773.
11.
. …………..of the surface of the Earth is covered by water.
Correct Answer
D. Nearly three-quarters
Explanation
The correct answer is "nearly three-quarters". This phrase correctly expresses that a significant portion of the Earth's surface is covered by water. The word "nearly" indicates that it is not exactly three-quarters, but very close to that amount.
12.
By the mid-eighteenth century………….. so many new immigrants entering North America from Europe that the original colonies in the Northeast were overcrowded.
Correct Answer
D. There were
Explanation
The correct answer is "there were." This is because the sentence is discussing the number of new immigrants entering North America, and "there were" is the correct phrase to indicate the existence or presence of something. It is used to describe the overcrowding situation in the original colonies in the Northeast due to the influx of immigrants from Europe.
13.
…………..not until the end of the seventeenth century that scientists began to stress the importance of experiments as a way of gaining knowledge.
Correct Answer
B. It was
Explanation
The correct answer is "it was." This answer is chosen because the sentence is referring to a specific point in time, the end of the seventeenth century, when scientists started emphasizing the significance of experiments for acquiring knowledge. "It was" is the appropriate phrase to indicate this specific time period.
14.
………..are the most poisonous fish in the world.
Correct Answer
D. Stonefish
Explanation
Stonefish are the most poisonous fish in the world. They are known for their venomous spines, which can cause excruciating pain and even death if not treated promptly. Stonefish are masters of camouflage, blending in with their surroundings and making them difficult to spot. Their venom is released when their spines are triggered, usually by stepping on them. It is important to exercise caution when swimming or walking in areas where stonefish are known to inhabit.
15.
Seismic prospecting…………..used to map out rock structures below the ground.
Correct Answer
C. Is widely
Explanation
Seismic prospecting is widely used to map out rock structures below the ground.
16.
………..in space, a rocket has to be powerful enough to break out of the pull of
the Earth’s gravity.
Correct Answer
A. To travel
Explanation
In order to travel in space, a rocket needs to be powerful enough to break out of the Earth's gravity. This is because the Earth's gravity pulls objects towards its center, making it difficult for a rocket to escape its gravitational pull. Therefore, the correct answer is "to travel" as it accurately reflects the requirement of overcoming Earth's gravity to journey into space.
17.
When archeologist discovered the ruins of the Olympic Stadium, interest in the Games …………
Correct Answer
B. Were renewed
Explanation
When archaeologists discovered the ruins of the Olympic Stadium, interest in the Games was renewed. The subject "interest" is singular, so the verb should agree with it and be in the singular form "was renewed."
18.
The ancient Olympic Games …………as amateur contests, but in time became
professional.
Correct Answer
B. Began
Explanation
The correct answer is "began". The sentence is talking about the ancient Olympic Games and how they started as amateur contests but eventually became professional. "Began" is the past tense of the verb "begin" and accurately reflects the idea of the games starting in the past.
19.
The winners received a wreath …………from the branches of the sacred olive tree.
Correct Answer
A. Made
Explanation
The correct answer is "made". This is because the sentence is in the past tense and the verb "made" is the past tense form of "make". Therefore, it is grammatically correct to say that the winners received a wreath that was made from the branches of the sacred olive tree.
20.
The marathon first staged in 1896, …………the legendary feat of a Greek soldier who carried news of victory from the battlefield at Marathon to Athens.
Correct Answer
A. Was commemorated
Explanation
The correct answer is "was commemorated". This is because the sentence is referring to a past event, the marathon that was first staged in 1896. The verb "was commemorated" indicates that the event was celebrated or remembered in some way.
21.
Winning first place in an event was the only glory in the ancient Games because second and third places………….
Correct Answer
D. Were not recognized
Explanation
In the ancient Games, only the winner of an event was recognized and celebrated. Second and third place finishers were not given any recognition or glory. Therefore, the correct answer is "were not recognized".
22.
After more than 1500 years, Athens …………for the site of the first modern Olympics.
Correct Answer
B. Was chosen
Explanation
The correct answer is "was chosen". This is because the sentence is referring to an event that happened in the past (more than 1500 years ago), so the past tense "was chosen" is the appropriate form to use.
23.
The Olympic Games are held every four years in a selected country, and…………to athletes of all nations.
Correct Answer
B. Are opened
Explanation
The correct answer is "are opened". The sentence is describing the Olympic Games and how they occur every four years in a selected country. The phrase "are opened" is the appropriate verb form to indicate the beginning or commencement of the games.
24.
Electronic timing …………..for the first time in the 1912 Olympics in Sweden.
Correct Answer
B. Was used
Explanation
The correct answer is "was used". This is because the sentence is referring to a past event, specifically the 1912 Olympics in Sweden. Therefore, the correct verb form to use is the past tense "was used".
25.
The first systematic chart ever made of an ocean current …………..by Benjamin Franklin.
Correct Answer
B. Was published
Explanation
Benjamin Franklin was the first person to create a systematic chart of an ocean current. The use of the past tense "was published" indicates that the chart has already been published in the past. This suggests that Franklin completed his work and made the chart available to the public at some point in the past.
26.
Petroleum …………..on every continent and beneath every ocean.
Correct Answer
A. Is found
Explanation
Petroleum is found on every continent and beneath every ocean.
27.
Animals …………..on Earth for at least 700 million years.
Correct Answer
C. Have lived
Explanation
The correct answer is "have lived" because the sentence is referring to a period of time in the past (700 million years) and implies that animals are still living on Earth. The present perfect tense "have lived" is used to indicate an action that started in the past and continues up to the present.
28.
Some fish …………..distortion of electrical field through special receptors.
Correct Answer
C. Are sensed
Explanation
Fish have special receptors that allow them to sense distortions in the electrical field around them. This ability helps them navigate, communicate, and locate prey or predators. The phrase "are sensed" implies that the fish themselves are the ones being acted upon by the electrical field, indicating that they are the recipients of the sensory information.
29.
During the Ice Age, glaciers…………..and retreated several times over large
areas of the earth.
Correct Answer
A. Had been advanced
Explanation
During the Ice Age, glaciers had been advanced and retreated several times over large areas of the earth. This implies that the glaciers had moved forward or expanded and then moved back or retreated multiple times during the Ice Age. The use of "had been advanced" indicates that this action of advancement and retreat had occurred in the past before another event or time mentioned in the context.
30.
The authorities permitted women __________ in track and field events in the 1928 Winter Games.
Correct Answer
A. To take part
Explanation
The correct answer is "to take part" because it is the infinitive form of the verb "take part" and is used to express the purpose or intention of the authorities permitting women. It indicates that the authorities allowed women to participate in track and field events during the 1928 Winter Games.