1.
A tapestry consists of a foundation weave, called the warp, which passes through different colored threads, called the weft, forming decorative patterns.
Correct Answer
B. Which across
Explanation
The words “which across” are flipped. The sentence should read “A tapestry consists of a foundation weave, called the warp, across which are passed different colored threads, called the weft, forming decorative patterns.”
2.
The works of early American woodcarvers had many artistic qualities, but these
craftsmen probably did not think of them as artists.
Correct Answer
D. Them
Explanation
The sentence is grammatically correct. However, for better clarity, you might consider rephrasing it as:
"The works of early American woodcarvers had many artistic qualities, but these craftsmen probably did not consider themselves as artists."
This revision provides a slight improvement in readability and maintains the intended meaning.
3.
Perhaps mankind's first important musical influence were the songs of birds.
Correct Answer
C. Were
Explanation
The sentence has a subject-verb agreement error. It should be:
"Perhaps mankind's first important musical influence was the songs of birds."
The correction aligns the verb "was" with the singular subject "influence."
4.
The techniques of science and magic are quite different, but their basic aims-to understand and control nature-they are very similar.
Correct Answer
D. Their
Explanation
“Their” is missing the word “in” in front of it.
5.
It was in a cave near Magdalena, New Mexico when the oldest known ears of corn were discovered.
Correct Answer
A. When
Explanation
The word "when" is the correct answer because it should be replaced with “that.”
6.
The fossil remains of much extinct mammals have been found in the tar pits at Rancho La Brea in Los Angeles.
Correct Answer
A. Much
Explanation
The word "much" in this sentence is used to indicate a large quantity or number of extinct mammals. The use of "much" should be changed to “many.”
7.
Sharks can detect minute electrical discharges coming from its prey.
Correct Answer
D. Its
Explanation
The word “its” should be changed to “their” to show the plural of sharks.
8.
A dark nebula consists of a cloud of interstellar dust enough dense to obscure the
stars beyond it.
Correct Answer
B. Enough dense
Explanation
The correct answer is "enough dense" because it is out of order and should be flipped to “dense enough.”
9.
Commercially honey is heated and filtered in order to stabilize and clarify it.
Correct Answer
A. Commercially
Explanation
Commercially refers to the process of producing or selling goods or services for profit. In the context of honey, commercially means that it is done on a large scale for commercial purposes. Filtered means that the honey is passed through a filter to remove impurities such as wax, pollen, or other particles. Stabilize means to make something stable or consistent. In the case of honey, heating and filtering it helps to remove any impurities and ensure that it has a consistent texture and appearance. Therefore, the correct answer is commercially.
10.
The various parts of the body require so different surgical skills that many surgical
specialties have developed.
Correct Answer
B. So
Explanation
The word "so" should be “such.” Such is used to intensify noun phrases and so is used with quantifiers like “many” and “much.”
11.
One reason birds have been so successful is because of their able to escape from
danger quickly.
Correct Answer
C. Able
Explanation
The original sentence contains an error in the phrase "because of their able to escape." The correct form is "because of their ability to escape." The word "able" should be replaced with "ability" to properly convey that birds have the capacity or skill to escape from danger quickly.
12.
The wood of the rosewood tree is used to do fine musical instruments.
Correct Answer
C. Do
Explanation
The original sentence contains an error in the phrase "used to do fine musical instruments." The correct expression is "used to make fine musical instruments." In this context, "make" is the appropriate verb to indicate the process of creating or constructing musical instruments from the wood of the rosewood tree.
13.
Chemical engineering is based on the principles of physics, chemists, and mathematics.
Correct Answer
C. Chemists
Explanation
The original sentence contains a grammatical error. The correct terms are "chemistry" (not "chemists") and "mathematics." Therefore, the corrected sentence reads, "Chemical engineering is based on the principles of physics, chemistry, and mathematics."
14.
Ballet performers must be believable actors and actresses as well as experts
dancers.
Correct Answer
D. Experts
Explanation
The correct answer is "experts" because the sentence states that ballet performers must be "believable actors and actresses as well as experts dancers." This means that in addition to being skilled dancers, they must also have a high level of expertise in their craft.
15.
Venus, the second planet from the Sun, is exactly almost the same size as the Earth.
Correct Answer
C. Exactly almost
Explanation
The original sentence is awkward and has a misplaced adverb. The corrected version rearranges the adverbs for better clarity and reads, "Venus, the second planet from the Sun, is almost exactly the same size as the Earth."
16.
P T. Barnum opened his own circus in 1871 and become the most famous
showman of his time.
Correct Answer
B. Become
Explanation
The original sentence contains a verb tense error. The correct form is "became" instead of "become" to match the past tense context of the sentence. Therefore, the corrected sentence reads, "P. T. Barnum opened his own circus in 1871 and became the most famous showman of his time."
17.
The way a child plays with other children reveals a lots about the child's
emotional development.
Correct Answer
B. A lots
Explanation
The phrase "a lots" is grammatically incorrect. The correct phrase should be "a lot." This suggests that the child's emotional development can be observed through their interactions and behavior while playing with other children.
18.
Sheep have been domesticated for over 5,000 years ago.
Correct Answer
D. Years ago
Explanation
The original sentence contains an unnecessary "ago" after "5,000 years." The correct sentence omits "ago" to maintain clarity and grammatical accuracy, reading, "Sheep have been domesticated for over 5,000 years."
19.
Chemical compounds with barium, cobalt, and strontium are responsible to many
of the vivid colors in fireworks.
Correct Answer
C. To
Explanation
The original sentence has a preposition error. The correct form is "responsible for" instead of "responsible to" in this context. Therefore, the corrected sentence reads, "Chemical compounds with barium, cobalt, and strontium are responsible for many of the vivid colors in fireworks."
20.
Duke University in North Carolina has an outstanding collecting of documents
concerning Southern history.
Correct Answer
B. Collecting
Explanation
The original sentence has a noun error. The correct form is "collection" instead of "collecting" to refer to the assembled documents. Therefore, the corrected sentence reads, "Duke University in North Carolina has an outstanding collection of documents concerning Southern history."