PELLETB · writing · clarity
Each clarity item gives you two versions of one sentence, and you mark the one that is clear and correct. POST's guide says only common faults appear, from four families: modifiers, references, run-ons and fragments. And it is where study pays off: in POST's words, this is the sub-test where studying can markedly improve your score.
Each wrong version carries one of these. The examples are ours, not POST's:
Source: POST Applicant Preparation Guide, form version 2025, pp. 1, 7–9 · checked 21 Oct 2026
Trap: choosing the longer or more formal sentence
Often the two versions differ only slightly, by a word, a comma or a period; some differ in how the whole sentence is built. The test asks which one is clear, not which sounds more official. A long sentence with every comma in place beats a short one with a dangling it. Find the exact difference first, then ask which fault it creates.
Select the sentence that is written most clearly and correctly.
Answer explanations
Correct: The adjective sits right next to the noun it describes, so there is no doubt that the car is red.
Incorrect: The opening phrase attaches to the officer, so the sentence says the officer was painted red.
Select the sentence that is written most clearly and correctly.
Answer explanations
Incorrect: Only a comma joins the two complete clauses, creating a comma splice.
Correct: The semicolon properly separates two complete statements about two officers.
Select the sentence that is written most clearly and correctly.
Answer explanations
Incorrect: Two complete clauses are spliced with a comma, and the added "he" makes the second one independent.
Correct: The opening phrase leads into one subject with two verbs, so there is a single clean sentence.
Select the sentence that is written most clearly and correctly.
Answer explanations
Incorrect: "Then" is an adverb, not a joining word, so the comma links two full clauses and forms a splice.
Correct: One subject takes two verbs joined by "and then," so no second clause needs separate punctuation.
Select the sentence that is written most clearly and correctly.
Answer explanations
Incorrect: "The address, units were sent" joins two complete clauses with a comma alone, a comma splice.
Correct: The comma plus "and" correctly joins the two independent clauses.
Select the sentence that is written most clearly and correctly.
Answer explanations
Incorrect: "After the alarm sounded" lands next to "officers arrived," so it is unclear which event followed the alarm.
Correct: Putting the alarm first makes the order of events clear: alarm, flight, then the officers' arrival.
Select the sentence that is written most clearly and correctly.
Answer explanations
Correct: Adding a subject and verb turns the description into a complete sentence.
Incorrect: There is no main verb, so the description is a fragment rather than a sentence.
Select the sentence that is written most clearly and correctly.
Answer explanations
Incorrect: A comma alone between two complete clauses is a comma splice.
Correct: A semicolon joins the two related independent clauses correctly.
Select the sentence that is written most clearly and correctly.
Answer explanations
Correct: "Officer Diaz noticed … while handing" leaves only one person who could have noticed the missing signature.
Incorrect: "He" could refer to Officer Diaz or to the sergeant, so the reader cannot tell who saw the problem.
Select the sentence that is written most clearly and correctly.
Answer explanations
Incorrect: "Overnight the owner reported" runs two independent clauses together with no punctuation, a run-on sentence.
Correct: The comma and "and" separate the two complete clauses properly.
Which of the following sentences is most clearly written?
Answer explanations
Incorrect: The phrase is followed by "they" (the fingerprints), which makes the fingerprints the ones doing the collecting.
Correct: "The technician sent them" puts the person who did the collecting right after the opening phrase.
Select the sentence that is written most clearly and correctly.
Answer explanations
Incorrect: A comma joins two independent clauses with no conjunction, creating a comma splice.
Correct: One subject with two joined verbs keeps the sentence complete and correctly punctuated.
Select the sentence that is written most clearly and correctly.
Answer explanations
Correct: Each action has its own clear subject, so the reader knows the officer wrote and the driver started the engine.
Incorrect: The opening phrase has no proper subject after it, so it reads as if the engine was writing the citation.
Select the sentence that is written most clearly and correctly.
Answer explanations
Incorrect: "With the telescope" could describe how he saw or which man he saw, so the sentence has two meanings.
Correct: Placing the phrase first shows that he used the telescope to see the man.
Select the sentence that is written most clearly and correctly.
Answer explanations
Incorrect: "Identifying" cannot serve as a main verb alone, so the sentence is a fragment.
Correct: "Identified" is a main verb, so the sentence is complete.
Answer every question to see your score
Comma splices like The door was open, the room was empty are a run-on in disguise: two full sentences held together by a comma. A semicolon or a period fixes them; a comma alone does not.
PELLETB practice app
More PELLETB practice questions with explanations, in a study app. Not affiliated with California POST.
15–18 items, each a pair of sentences. You choose the one written clearly and correctly. The faults come from four families: misplaced modifiers, unclear references, run-on sentences and fragments.
Yes, and it is the sub-test where it helps most: POST's guide says studying can markedly improve your score here, because the faults are few and repeat. Learn to name each one.
Not as its own section. Spelling and vocabulary test words, and reading comprehension tests understanding. Clarity is where sentence structure is scored.