SAT Reading and Writing Practice Question #525 (Hard (800)) | Test Citadel
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SAT Reading and Writing Difficulty: Hard (800)

Digital SAT Reading and Writing Practice Question #525

Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.

The sheer scale of the ocean’s abyssal zone makes it one of the most difficult environments on Earth to explore. Not only ______ the physiological mechanisms of deep-sea gigantism remain poorly understood by modern marine biologists, but the sheer logistical difficulty of studying these elusive creatures in their high-pressure natural habitats also precludes comprehensive scientific observation. Which choice completes the text so that it conforms to the conventions of Standard English?
Select Your Answer:
Socratic AI Engine Step-by-Step Derivation
0ms Precomputed
Tactical Insight (Hint 1)

Read the sentences immediately before and after the blank. Determine the logical relationship: is it Cause/Effect (thus, consequently), Contrast (however, yet), or Addition (moreover)?

Elimination Framework (Hint 2)

Elimination Strategy: In digital reading/writing, 3 out of 4 choices contain an active flaw (half-right/half-wrong, too extreme, or wrong transition type). Cross out options with absolute words like "always", "proves", or "never".

Masterclass Solution & Distractor Trap Analysis

The SAT loves to test subject-verb agreement by hiding the subject or using inverted syntax. Here, the sentence begins with the correlative conjunction 'Not only', which triggers subject-auxiliary inversion. Let's parse the clause: 'Not onl...

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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