Difficulty: Easy
Correct Answer: perceptible change in
Explanation:
Introduction / Context:The test here is article usage before a singular countable noun. “Change” in this sense is countable when referring to a specific instance, so it needs an article: “a perceptible change.”
Given Data / Assumptions:
Concept / Approach:Before singular countable nouns, use “a/an” unless the noun is made specific by a determiner. Therefore, the correct phrasing is “there is a perceptible change in …”.
Step-by-Step Solution:
Identify head noun: “change” (singular, countable).Insert article: “a perceptible change.”Retain remaining structure; it is correct.Verification / Alternative check:
Recast: “The recent study has indicated that there is a perceptible change in the attitudes of the people.”Why Other Options Are Wrong:
A–B: Perfect construction “has indicated that there is …” is fine.D: Noun phrase is correct (“the attitudes of the people”).Common Pitfalls:
Omitting articles before singular count nouns; assuming “change” is always uncountable.Final Answer:perceptible change in
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