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To prepare for the long winter ahead, the busy squirrels gathered acorns and hickory nuts, storing them away for future use in the months to come.
Which of the following choices represents the most concise and grammatically correct option for the underlined portion of the sentence?
As global temperatures rise, many alpine glaciers are retreating backward in a reverse direction, and this movement leaves behind barren valleys of exposed rock.
Which of the following choices is the best edit to the underlined portion of the sentence?
Each autumn, millions of monarch butterflies embark on a long migration to central Mexico. During the time when they are flying on this journey, they rely on warm wind currents to glide through the air.
Which choice is the most concise and grammatically correct option for the underlined portion?
During a winter trip to New York City in 1903, Mary Anderson noticed that the streetcar driver had to open the front window pane constantly to wipe away the falling sleet. Upon returning to Alabama, she designed a manually operated swinging arm with a rubber blade [1]that was designed by her to clear away rain and snow from windshields in order to solve the visibility problem. Anderson was granted a patent for her device in 1903, but car manufacturers initially saw little commercial value in it.
Which choice most effectively and concisely replaces the underlined portion labeled [1]?
The paragraph below contains an underlined portion in brackets.
In 1964, radio astronomers Arno Penzias and Robert Wilson detected a persistent background noise that they could not explain. This mysterious [hum, later identified as the cosmic microwave background radiation, the thermal echo of the Big Bang—was] coming from all directions in the sky. To rule out local interference, they even cleaned the horn antenna of pigeon droppings, but the signal remained.
Which of the following options is the correct punctuation for the underlined portion in brackets?
[1] In the winter of 1902, during a visit to New York City, Mary Anderson observed a trolley driver struggling to see through the falling sleet. [2] The driver had to keep opening the front window pane, letting the freezing rain into the vehicle, just to clear the glass by hand. [3] Shocked by the discomfort and danger this caused, Anderson set out to find a solution. [4] New York City's trolley system was one of the largest in the country at the time, utilizing electric streetcars to transport thousands of commuters daily. [5] Upon returning to her home in Alabama, she designed a wooden lever connected to a rubber blade that could be operated from inside the vehicle.
The writer is considering deleting Sentence 4 from the paragraph. Should this sentence be kept or deleted?
Prior to 1931, maps of the London Underground plotted subway routes geographically, overlaying them onto a standard city map. This method resulted in congested center sections and sprawling, hard-to-read outer lines. An engineering draftsman named Harry Beck realized that passengers riding underground only needed to know the sequence of stations and where to transfer, rather than their exact geographical coordinates. His solution was a diagrammatic layout that resembled an electrical circuit, using only horizontal, vertical, and 45-degree diagonal lines. By ignoring geographical accuracy, Beck created a clean, legible map that became a design classic and the model for transit systems worldwide.
The writer is considering adding the following sentence to the paragraph:
"Beck was temporarily laid off from his job at the Signals Office during a period of staff reductions, though he continued working on the map design in his spare time."
Should the writer make this addition?
To understand the migration patterns of monarch butterflies, scientists track the insects' movements using lightweight radio transmitters. The research team collaborated together in joint cooperation to map the specific routes across North America.
Which of the following options, when substituted for the underlined portion, makes the sentence grammatically correct and free of unnecessary redundancy?
The following is an excerpt from a draft of an essay about the cosmic microwave background radiation.
[1]
__________________________________________________. In 1964, radio astronomers Arno Penzias and Robert Wilson were troubled by a persistent, low-frequency hum coming from their Holmdel horn antenna in New Jersey. They tried everything to eliminate the noise: pointing the antenna in different directions, cleaning out nesting pigeons, and cooling the receiver to near absolute zero. Yet, the hiss remained constant, day and night. Ultimately, they realized that this background noise was actually the cosmic microwave background radiation—the leftover thermal echo of the Big Bang. Their accidental discovery provided the first definitive observational evidence for the Big Bang theory, transforming our understanding of the universe’s origins.
Which choice best establishes the main topic and serves as an effective introduction to the essay?
Passage
In , computer pioneer Grace Hopper recorded the first computer "bug" when she found a moth trapped in a relay of the Harvard Mark II. [1] Consequently, her most significant contribution to computer science was the invention of the compiler, a program that translated written English commands into machine code.
Which choice provides the most logical transition from the preceding sentence?
Many literary historians regard the author's diary to be a crucial resource for understanding the social dynamics of the era. Which choice is the best replacement for the underlined portion?
Determined to find a more efficient catalyst, the chemists adjusted the temperature of the reaction vessel; consequently, the subsequent outcome resulted in a significant yield increase.
Which of the following choices best replaces the underlined portion to make the sentence clear, concise, and grammatically correct?
Early pencils were crude, consisting of graphite chunks wrapped in string. Later, Italian artisans pioneered the method of hollow-carving wooden sticks, and it was into these wooden sticks that they inserted the graphite. Today, pencils are manufactured worldwide using a blend of graphite and clay to create different levels of hardness.
Which of the following is the most effective edit to the underlined portion of the sentence?
In the early twentieth century, the discovery of the Antikythera mechanism—an ancient Greek analog computer—challenged previous assumptions about historical technology. This unique artifact, which was one of a kind and unlike any other object from its era, demonstrated a level of mechanical sophistication that was not seen again for over a thousand years.
Which of the following alternatives to the underlined portion is the most concise and grammatically correct?
The following paragraph contains numbered sentences.
[1] When the Dutch merchant Antonie van Leeuwenhoek first looked through his hand-carved microscopes in the 1670s, he was astonished to find tiny organisms swimming in pond water. [2] He called these microscopic creatures "animalcules," which we now know as bacteria and protists. [3] Recognizing the significance of his findings, van Leeuwenhoek detailed them in letters to the Royal Society of London. [4] The esteemed members of the Society, initially skeptical of these bizarre reports, eventually dispatched observers to verify his claims.
For the sake of the logic and cohesion of the paragraph, where is the most logical placement for the following sentence?
"These documents, written in Dutch, included meticulous drawings of the tiny cells."
Although the artist's early paintings were dismissed by critics, her later masterpieces gained recognition and won widespread acclaim, being praised by many, they established her as a leading figure of the modernist movement.
Which of the following is the best way to write the underlined portion of the sentence?
To prevent the spread of the virus, health officials recommended that individuals abbreviate their public gatherings and work from home whenever possible. Since crowded spaces facilitate transmission, reducing interpersonal contact is paramount. Consequently, local governments have also suspended large-scale events.
Which choice is the most precise and appropriate word to replace the bolded word in the passage?
Although the talented young software engineer was eager to explore new career opportunities in the fast-paced tech industry, the strict terms of his initial employment contract precluded him to accept any position at a competing firm for at least one year. Consequently, he decided to focus his energy on developing his own independent mobile applications while waiting for the non-compete clause to expire. This strategic decision ultimately allowed him to launch a successful startup of his own.
Which choice is the most appropriate option to replace the underlined portion?
The following sentence contains an underlined portion:
The librarians scanned each fragile page working in a way that was highly efficient and did not waste any time because they hoped to complete the project by Friday.
Which choice most effectively eliminates wordiness in the underlined portion?
Dr. Chen’s study of avian migration patterns provides valuable insight for how climate change shifts the seasonal behaviors of songbirds.
Which choice best replaces the underlined portion to ensure the sentence is grammatically and idiomatically correct?