End-of-Sentence Punctuation

Read the passage below. What punctuation mark should be placed in the blank to grammatically complete the sentences?

The following passage is an excerpt from an essay about Egyptology.

For centuries, the hieroglyphic inscriptions on Egyptian monuments remained an impenetrable mystery to scholars. In 1799, French soldiers discovered a dark granodiorite slab near the port city of Rashid. This artifact, later named the Rosetta Stone, contained the same decree written in three different scripts. The decipherment of the stone was not immediate, however, scholars struggled for decades to decode the glyphs because they did not understand that the symbols represented both sounds and concepts.

Which of the following is the best alternative for the underlined portion?

Read the passage below. Which punctuation mark must be placed in the blank to correctly terminate the first sentence?

Read the following passage:

For decades, researchers struggled to map the deep ocean floor, as sonar technology was still in its infancy. The breakthrough arrived in the mid-twentieth century. Cartographer Marie Tharp began analyzing raw sonar profiles, she painstakingly drew the first comprehensive maps of the Atlantic rift valley. Her work eventually revolutionized the scientific understanding of continental drift.

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

The following passage is about the work of medieval scribes.

To preserve classical knowledge, medieval scribes spent countless hours copying texts in cold monasteries. They painstakingly reproduced scientific, philosophical, and literary manuscripts, despite the poor lighting and fatigue. Consequently, modern scholars must compare multiple versions of the same text. To reconstruct the original content as accurately as possible.

Which of the following options represents the correct punctuation for the underlined portion of the passage?

The passage below contains a blank at the end of the first sentence. Which punctuation mark best fills the blank to correctly punctuate the end of the first sentence?

Read the passage below. What is the single punctuation mark that must fill the blank to correctly end the first sentence?

Identify the correct punctuation mark that completes the sentence boundary in the passage. What punctuation mark must be inserted into the blank to properly end the first sentence?

Deep within the dense canopy of the Guatemalan jungle, archaeologists have long struggled to locate ancient Maya structures. Recently, however, light detection and ranging (LiDAR) technology has revolutionized the field, researchers fire millions of laser pulses from an airplane to map the ground beneath the foliage. This method has revealed thousands of previously hidden ruins, including pyramids, highways, and defensive walls.

Which of the following choices best punctuates the underlined portion of the passage?

Many local community gardens have started implementing rainwater harvesting systems to conserve water. These systems collect rain that runs off roofs and store it in large barrels. Which can then be used to water the plants during dry spells. This practice helps reduce municipal water usage significantly.

Which of the following options best corrects the underlined portion of the passage?

The following passage contains a blank at the boundary of two sentences. Which punctuation mark should be inserted in the blank to correctly terminate the first sentence?

The passage below ends with an inquiry about a pioneering historical figure. Which punctuation mark must be placed in the blank to grammatically and rhetorically complete the final sentence?

In the deep, lightless zones of the ocean, the anglerfish uses a glowing lure to attract prey. This bioluminescent organ, called an esca, is filled with symbiotic <u>bacteria. Which produce</u> light through a complex chemical reaction. This glowing trap allows the predator to survive in an environment where food is extremely scarce.

Which of the following choices represents the correct punctuation at the underlined boundary?

In 1912, German meteorologist Alfred Wegener proposed the theory of continental drift, suggesting that Earth’s continents were once joined in a single supercontinent. Most of his contemporaries dismissed the idea because Wegener could not identify a physical mechanism that could move entire landmasses. He continued to gather supporting evidence until his death. Never seeing his revolutionary theory accepted by the scientific community.

Which of the following is the correct punctuation and phrasing for the underlined portion of the passage?

Read the passage below about thermophilic bacteria. Which punctuation mark should be placed in the blank to grammatically connect the two independent clauses?

In 1964, radio astronomers Arno Penzias and Robert Wilson detected a persistent background hiss that they could not explain, they initially suspected that the noise was caused by nesting pigeons. However, even after cleaning the antenna, the signal remained. This mysterious hum was actually the cosmic microwave background radiation, which is the remnant heat of the Big Bang.

Which of the following is the best choice for the underlined portion of the passage?

Read the passage below about the construction of the Florence Cathedral. What punctuation mark should be placed in the blank to grammatically complete the second sentence?

For decades, researchers struggled to explain the strange, rhythmic radio signals coming from outer space. Jocelyn Bell, a postgraduate student at Cambridge, first noticed the anomaly. Although she initially suspected the signals were man-made interference. She and her advisor eventually proved that these pulsars were actually rapidly rotating neutron stars.

Which of the following options provides the correct punctuation to fix the underlined portion of the passage?