Free ACT English: Punctuation for Clauses and Phrases Questions and Answers 1 — Questions and Answers
Question 1: The ancient Roman aqueducts were marvels of engineering, some are still standing today, a testament to their builders' skill.
- engineering, some are still standing today a testament
- engineering; some are still standing today, a testament (Correct answer)
- engineering, some are still standing today: a testament
- engineering and some are still standing today a testament
Correct answer: engineering; some are still standing today, a testament
This sentence contains a comma splice, which is an error where two independent clauses are joined only by a comma. A semicolon is used to correctly connect two closely related independent clauses. The phrase 'a testament to their builders' skill' correctly modifies the preceding clause.
Question 2: To prepare for the marathon, the runner followed a strict regimen that included three things: a balanced diet, consistent training, and adequate rest.
- three things: a balanced diet, consistent training, and adequate rest. (Correct answer)
- three things; a balanced diet, consistent training, and adequate rest.
- three things, a balanced diet, consistent training, and adequate rest.
- three things. A balanced diet, consistent training, and adequate rest.
Correct answer: three things: a balanced diet, consistent training, and adequate rest.
A colon is used to introduce a list, explanation, or quotation that follows an independent clause. The clause 'the runner followed a strict regimen that included three things' is a complete thought, making the colon the appropriate punctuation to introduce the list of three items.
Question 3: Because the museum's new exhibit on deep-sea life was so popular, the museum extended its hours to accommodate the crowds.
- popular, the museum extended its hours (Correct answer)
- popular the museum extended its hours
- popular; the museum extended its hours
- popular: the museum extended its hours
Correct answer: popular, the museum extended its hours
An introductory dependent clause ('Because the museum's new exhibit on deep-sea life was so popular') must be followed by a comma before the main independent clause begins. Removing the comma creates a run-on sentence.
Question 4: The lead scientist, a brilliant researcher from a small university, made a discovery that could change the field of medicine.
- scientist a brilliant researcher from a small university, made
- scientist, a brilliant researcher from a small university made
- scientist, a brilliant researcher from a small university, made (Correct answer)
- scientist; a brilliant researcher from a small university; made
Correct answer: scientist, a brilliant researcher from a small university, made
The phrase 'a brilliant researcher from a small university' is a non-restrictive appositive, meaning it provides extra information about 'The lead scientist' but is not essential to the sentence's meaning. Non-restrictive elements must be set off by commas on both sides.
Question 5: The defendant remained stoic and impassive; his family, however, could not hide their anxiety.
- impassive, his family, however,
- impassive: his family, however
- impassive; his family, however, (Correct answer)
- impassive, his family however
Correct answer: impassive; his family, however,
A semicolon is used to join two independent clauses. When the second clause begins with a conjunctive adverb like 'however,' a comma should follow it to separate it from the rest of the clause. This structure correctly links the two contrasting ideas.
Question 6: The artist used a vibrant palette of colors, including cerulean blue, cadmium yellow, and crimson red.
- cerulean blue, cadmium yellow, and crimson red. (Correct answer)
- cerulean blue; cadmium yellow; and crimson red.
- cerulean blue cadmium yellow and crimson red.
- cerulean blue, cadmium yellow and crimson red.
Correct answer: cerulean blue, cadmium yellow, and crimson red.
Commas are used to separate items in a series or list. In this sentence, 'cerulean blue,' 'cadmium yellow,' and 'crimson red' are the items in the list of colors, and they must be separated by commas for clarity.
Question 7: The old bookstore was a labyrinth of towering shelves; every corner revealed a new treasure, a forgotten classic, or a rare first edition.
- shelves, every corner revealed a new treasure, a forgotten classic, or a rare first edition.
- shelves; every corner revealed a new treasure, a forgotten classic, or a rare first edition. (Correct answer)
- shelves, every corner revealed a new treasure: a forgotten classic, or a rare first edition.
- shelves; every corner revealed a new treasure; a forgotten classic; or a rare first edition.
Correct answer: shelves; every corner revealed a new treasure, a forgotten classic, or a rare first edition.
The first part of the sentence contains two independent clauses joined by a semicolon. The second clause ('every corner revealed a new treasure...') is followed by a list that renames or explains 'treasure.' A comma is the correct punctuation to separate the items in that list.
Free ACT English: Punctuation for Clauses and Phrases Questions and Answers 1
The ancient Roman aqueducts were marvels of engineering, some are still standing today, a testament to their builders' skill.