All practice questions

Cellulose nitrate film reels, which were widely used in the early days of cinema, present a major preservation hazard. Because they are highly flammable and can decompose at room temperature. Archival institutions must store them in specialized, climate-controlled vaults to prevent spontaneous combustion.

Which option is the most grammatically correct replacement for the underlined portion?

During the dry season, the nomadic herders survived by migrating to higher elevations, digging shallow wells in dry riverbeds, and traded handwoven textiles for grain in local markets.

Which choice most effectively maintains the parallel structure of the sentence?

The following passage is an excerpt from an essay about the history of geology:

"In 1912, Alfred Wegener proposed the theory of continental drift, explaining that the Earth's landmasses were once joined. Many geologists rejected Wegener's ideas because he could not explain the physical mechanism that moved them. This lack of explanation made it a subject of intense debate for decades."

Which of the following options is the best replacement for the underlined word to ensure the sentence is clear and grammatically correct?

At the ancient dig site, the lead archaeologist handed my assistant and I brushes for cleaning the delicate pottery fragments. Which option best replaces the underlined pronoun?

Read the sentence below, which contains a blank. Which form of the verb 'remedy' must be written in the blank to ensure the sentence maintains a parallel structure?

Consider the following sentence:

The architectural designs of Frank Lloyd Wright, which emphasized harmony with nature, are often considered more innovative than his contemporary architects.

Which of the following choices is the most effective correction for the underlined portion of the sentence?

The following passage contains an underlined portion.

In the early 1990s, paleontologists discovered fossilized feathers in the Liaoning Province of China. This finding provided crucial evidence linking theropod dinosaurs to modern birds, a connection that had long been debated. Although the researchers analyzed both the dinosaur fossils and the avian specimens, they could not determine the exact evolutionary timeline from them.

Which of the following choices is the most effective and grammatically correct replacement for the underlined word?

The sentence below contains a dangling modifier error:

"Though feared by sailors for centuries as a harbinger of doom, marine biologists have shown the giant squid to be a shy creature that avoids human contact."

To correct this error and maintain the original meaning, the sentence must be rewritten so that the noun logically described by the introductory phrase immediately follows the comma. Fill in the blank to complete the corrected sentence using the passive voice of the verb "show" and retaining "marine biologists" as the agent:

"Though feared by sailors for centuries as a harbinger of doom, {{blank_1}} to be a shy creature that avoids human contact."

The passage below contains a blank where a verb should be. Read the passage and determine the correct present-tense form of the verb 'suspect' to ensure proper subject-verb agreement. What is the correct form of the verb that completes the sentence?

The following passage is an excerpt about historical architecture.

[1] During the Middle Ages, master builders constructed massive stone cathedrals to reflect the grandeur of their faith. [2] The design of these towering structures, which often included intricate stained-glass windows and elaborate stone carvings, were carefully planned years before construction began. [3] Every detail was calculated to ensure structural stability.

Which of the following is the correct way to write the underlined word 'were' in the second sentence?

Every summer, thousands of visitors travel to the national park to view the spectacular waterfalls. They walk along the paved trails, took photos of the scenery, and enjoy picnic lunches by the river. These activities make the park a popular destination for families.

Which choice best maintains grammatical consistency in the sentence?

In the early 2000s, physicist Carl Haber developed a non-contact method to recover sound from damaged historical recordings. Using high-resolution digital imaging, Haber’s system—known as IRENE—creates a detailed three-dimensional map of a record's grooves. Although this technology is highly effective at reconstructing audio without touching the fragile surface. The processing of these massive image files requires significant computational power.

Which of the following options is the most effective replacement for the underlined portion?

The physicist Lise Meitner played a crucial role in the discovery of nuclear fission in 1938. While she co-led the team that analyzed the experimental results, she was excluded from the 1944 Nobel Prize in Chemistry, this was awarded solely to her collaborator Otto Hahn.

Which choice best completes the underlined portion of the sentence?

Neither the principal investigator nor the research assistants were able to complete its designated tasks before the laboratory's funding cycle ended.

Which of the following is the correct replacement for the underlined word?

Many modern astronomers study the lifecycle of stars. Because understanding how these stellar engines function can reveal the origins of the universe.

Which of the following choices is the best replacement for the underlined portion of the sentence?

Unlike modern concrete, which degrades over a few decades, ancient Roman concrete has endured for millennia, even in harsh marine environments. Because the volcanic ash used in its mixture triggers a chemical reaction. This reaction continuously seals microscopic cracks that form over time.

Which of the following choices represents the most grammatically correct revision of the underlined portion?

Choose the option that best replaces the underlined portion in the sentence below:

The vocal ranges of opera singers, which are developed through years of intense classical training, are often much broader than pop vocalists.

Which form of the verb 'have' correctly completes the sentence to ensure proper subject-verb agreement?

The following segments are part of a sentence that requires parallel structure. Arrange the segments in the correct order to form a logically coherent and grammatically correct sentence.

During the nineteenth century, steam engines powered massive factories and {{blank_1}} the transportation of goods across the country. Which form of the verb 'revolutionize' should be written in the blank to maintain a consistent verb tense?