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Sentence Correction: Comparative Questions – Overview

An experiment in a recent nephrological study of glomerulonephritis demonstrated that, in the presence of macrophage stimulating factor (M-CSF), macrophages proliferated almost so rapidly in the glomerulus, and even more rapidly in the tubulointerstitium, as in the absence of M-CSF.

Incorrect.

This answer choice is grammatically incorrect. The correct comparative construction is as [adjective or adverb] as, not so [adjective or adverb] as.

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Incorrect.

This answer choice is grammatically incorrect. The comparative construction as rapidly...  should be completed by another as (as [adjective or adverb] as).

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Excellent work!

This answer choice presents two parallel and grammatically correct comparative constructions:

(1) as rapidly as    (as [adverb] as)

and

(2) more rapidly than    (more [adverb] than)

Incorrect.

While this answer choice corrects the comparative mistake in the original question, it is stylistically flawed. The phrase what they did is redundant - it is unnecessary for understanding the comparison.

Incorrect.

This answer choice is grammatically incorrect. The word so (so rapidly) cannot be used to draw a comparison. Instead, the construction as [adjective or adverb] as should be used.

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This answer choice is also it is stylistically flawed. The phrase what they did is redundant - it is unnecessary for understanding the comparison.

almost as rapidly in the glomerulus, and even more rapidly in the tubulointerstitium than
almost so rapidly in the glomerulus, and even more rapidly in the tubulointerstitium, as
in the glomerulus almost as rapidly as, and in the tubulointerstitium even more rapidly than
almost as rapidly as in the glomerulus, and even more rapidly in the tubulointerstitium, than what they did
in the glomerulus almost so rapidly, and in the tubulointerstitium even more rapidly than what they did