English Grammar – Spot the Error (choose the segment containing the mistake; if there is no mistake, choose ‘‘No error’’). Sentence: “During last days, I was continuously trying to contact you, but you were not available.”

Introduction / Context:This sentence checks idiomatic time expressions with determiners. In English, when we refer to a specific, recent period, we typically say “during the last few days” or “in the last few days”, not “during last days”. The definite article and often “few” are required to make the phrase natural and precise.

Given Data / Assumptions:

• Intended meaning: over a recent span of days.
• Phrase used: “During last days”.
• Other clauses are structurally sound.

Concept / Approach:

• Use the definite article with “last/previous/next” when specifying a time period: “during the last week”, “in the next few months”.
• When the number is indefinite and small, “few” is idiomatic: “the last few days”.
• “During” selects a time period noun phrase; “days” alone without a determiner is awkward in this context.

Step-by-Step Solution:

Verification / Alternative check:

Why Other Options Are Wrong:

Common Pitfalls:

Final Answer: