Difficulty: Easy
Correct Answer: during last few years.
Explanation:
Introduction / Context:
This tests the correct time expression with present-tense statements. The phrase ‘‘during last few years’’ is missing the definite article and clashes with the simple present ‘‘provides’’ if the idea is ongoing from past to present.
Given Data / Assumptions:
Concept / Approach:
Two fixes are possible: (1) Keep simple present and remove the bounded past phrase; (2) keep the time span and switch to present perfect with the correct article: ‘‘has provided … for the last few years.’’ Within the given options, the error lies in D.
Step-by-Step Solution:
Insert the article: ‘‘the last few years.’’Prefer the perfect for duration up to now: ‘‘has provided … for the last few years.’’Corrected version (minimal to match the option): ‘‘… during the last few years.’’
Verification / Alternative check:
Compare: ‘‘for the last three years, we have helped …’’—note article + present perfect pairing for continuity.
Why Other Options Are Wrong:
A–C are acceptable in structure; D contains the clearest grammatical issue (missing ‘‘the’’; tense alignment is a secondary improvement not represented in options).
Common Pitfalls:
Dropping articles in fixed time expressions; mixing duration phrases with simple present.
Final Answer:
during last few years.
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