Walker Prep

Walker Prep

Share this post

Walker Prep
Walker Prep
SAT® Practice Question: Commas

SAT® Practice Question: Commas

Also Great Practice for ACT® English

Dave Walker's avatar
Dave Walker
May 08, 2025
∙ Paid
1

Share this post

Walker Prep
Walker Prep
SAT® Practice Question: Commas
Share

Today’s question is a mock SAT® Comma Question. It follows the digital SAT® format1 but is also great preparation for ACT® English.

For effective time management on test day, you should aim to answer this question correctly in a maximum of 30 seconds.

To gain access to all answer explanations and strategy briefs, become a premium subscriber.


Free SAT® Practice Question

A ten-year study of coral reef populations along thirty-two Florida coastline sites documented changes in fish diversity over time. ______ discovered that when seaweed growth near a reef increased dramatically, the number of different fish species inhabiting the reef declined.

Which choice completes the text so that it conforms to the conventions of Standard English?

A) Marine Biologist Marcus Flynn:

B) Marine Biologist, Marcus Flynn,

C) Marine Biologist Marcus Flynn

D) Marine Biologist Marcus Flynn,


SAT® is a registered trademark of the College Board, which is not affiliated with Walker Prep and was not involved in the production of, and does not endorse, this product or website.


Answer Explanations and Strategy Guide

This post is for paid subscribers

Already a paid subscriber? Sign in
© 2025 Dave Walker
Privacy ∙ Terms ∙ Collection notice
Start writingGet the app
Substack is the home for great culture

Share