Sentence Correction: Preposition and Idiom Questions - Overview

To someone accustomed to a high-sugar diet, food containing little or no sugar will not seem as tasty than much sweeter food does, although this reaction diminishes as time goes by.

This answer choice is illogical and grammatically incorrect. As cannot be complemented by than because as indicates a similarity or equality between the two things compared whereas than indicates a difference between them. 

What helps us identify this question as a Comparative question as well as identify the mistake is the following Stop Sign:

Like, unlike, than, as

Although this answer choice corrects the original Comparative mistake by replacing than with as, it is stylistically flawed as it omits the verb does from the second half of the Comparative structure. 

Since there's another answer choice that corrects the original mistake but preserves the verb are, it is preferable to this one. Look for it!

Although this answer choice corrects the original Comparative mistake by replacing than with as, it is grammatically flawed because it uses the incorrect preposition by after the word accustomed. The correct idiom is accustomed to.

Although this answer choice corrects the original Comparative mistake by replacing than with as, it is grammatically flawed because it uses the incorrect preposition of after the word accustomed. The correct idiom is accustomed to.

As cannot be complemented by than because as indicates a similarity or equality between the two things compared whereas than indicates a difference between them. This answer choice corrects this Comparative mistake by replacing than with as.

to a high-sugar diet, food containing little or no sugar will not seem as tasty than much sweeter food does
to a high-sugar diet, food containing little or no sugar will not seem as tasty as much sweeter food does
by a high-sugar diet, food containing little or no sugar will not seem as tasty as much sweeter food does
to a high-sugar diet, food containing little or no sugar will not seem as tasty as much sweeter food
of a high-sugar diet, food containing little or no sugar will not seem as tasty as much sweeter food does

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