Getting punctuation right is key for your digital SAT writing score. This question tests a fundamental rule. Let's analyze:

"Her portrait of novelist Zadie ______ is displayed..."

Here, "portrait" is the subject, and "is displayed" is the verb. Think of them as best friends – you generally can't stick punctuation between them! Adding a colon (A), dash (B), or comma (D) creates an awkward separation, essentially a sentence fragment error. Only choice (C) correctly keeps the subject and verb together smoothly. No punctuation needed here!

Modifiers can trip you up on the digital SAT! The opening phrase, "A government body officially known as the Althing," is a modifier. It describes something.

The rule? The word or phrase immediately following the comma MUST be the thing the modifier describes.

Let's check the options:

• (A) "the world’s oldest parliaments" - Incorrect. "Parliaments" is plural, but the modifier describes *a single* "government body."
• (B) "Iceland’s parliament" - Correct! Iceland's parliament *is* a government body. This fits perfectly.
• (C) "the first meeting" - Incorrect. A meeting is an event, not a government body.
• (D) "930 CE" - Incorrect. This is a year, not a government body.

Choice (B) is the only one that logically follows the modifier rule.

This question tests your ability to handle complex lists – a key skill for SAT test prep classes. Look closely at the structure:

Carla Hayden has several responsibilities:

1. Overseeing collections (which contain internal details/commas: "...collections, which boast more than 162 million items")
2. [Blank should be here] Managing the US Copyright Office (which also has internal details/commas: "...Office, which registers...")
3. Appointing the US poet laureate.

When items in a list already contain commas, you can't use more commas to separate the main items – it gets confusing! The solution? Use semicolons to separate the major list items.

The pattern is: Item 1; Item 2; and Item 3.

Therefore, we need a semicolon after "items" to properly separate the first major responsibility from the second. Choice (B) provides the correct semicolon.

Connecting ideas correctly is a big part of the digital SAT Reading and Writing test. Let's break down the sentence structure here:

"...interactions... occurred 10,000 years earlier than was previously supposed" - This part can stand alone as a complete thought (an independent clause).

a finding that, if true, would overturn current theories..." - This part describes the "finding." It adds extra information but can't stand alone smoothly (it's a non-essential modifier or phrase).

When you have an independent clause followed by a phrase that just adds extra detail (a non-essential element), you typically use a comma to set it off. A semicolon (A) or period (B) is too strong; they separate two *independent* clauses. No punctuation (C) runs the ideas together awkwardly.

Therefore, (D) is the correct way to connect these parts.

Remembering this structure will help in your digital SAT practice.

Punctuation around transition words like "though" can be tricky. Let's look at the sentence parts involved in our sat online coaching approach:

To create the warm atmospheres that are a signature of her work, - This is an introductory phrase (dependent clause/phrase).

(though) - This transition word adds contrast.

she occasionally relies on traditional techniques... - This can stand alone as a complete thought (independent clause).

Rule 1: You need a comma after an introductory phrase/clause. So, a comma after "work" is correct.

Rule 2: When a transition word like "though" appears *within* an independent clause (not connecting two independent clauses), it's often set off by commas if it interrupts the flow. However, here "though" doesn't feel like a strong interruption separating subject and verb. Placing it smoothly *after* the introductory comma makes sense. Choices C and D use semicolons, which are too strong here as we don't have two independent clauses being joined by "though." Choice A adds an extra comma after "though," which isn't necessary for flow here.

Choice (B) places the comma correctly after the introductory element, letting "though" flow into the main clause.

Answer is B.

Recognizing independent clauses is crucial for choosing the right punctuation, a core part of any good sat study course. Let's identify the main parts:

They are hardly pristine, though - This is a complete thought (Independent Clause 1).

many chondrites experience aqueous alteration... - This is also a complete thought (Independent Clause 2).

You have a few ways to connect two independent clauses:

• Period (.) -> Creates two sentences.
• Semicolon (;)
• Comma (,) + FANBOYS Conjunction (For, And, Nor, But, Or, Yet, So)

Looking at the options, we need punctuation *after* "though."

(A) stops after "though" - Incorrect.

(B) uses a semicolon. Since "though" here isn't acting like a FANBOYS conjunction *between* clauses, a semicolon is a valid way to connect these two related independent clauses. This looks correct.

(C) uses a colon. A colon introduces a list, explanation, or example, which isn't the relationship here.

(D) uses a comma. Using only a comma creates a comma splice (an error).

Thus, the semicolon in (B) is the best choice.

Let's analyze the structure again for effective digital sat test preparation:

That the geographic center... was conceded by all involved - Complete thought (Independent Clause 1).

establishing its precise coordinates proved more divisive - This also functions as a complete thought here, explaining a contrasting idea (Independent Clause 2).

We have two related but distinct independent clauses. Let's review options:

• (A) Colon: Used for lists or explanations. The second clause isn't directly explaining "involved."
• (B) Period: Creates two separate sentences. Possible, but a closer connection might be better.
• (C) No punctuation: Creates a run-on sentence error.
• (D) Semicolon: Correctly joins two closely related independent clauses. It shows the connection while respecting their independence.

The semicolon (D) is the most appropriate punctuation mark here to link these two contrasting, complete ideas smoothly.