Identifying the Grammatical Error

The question asks us to find the segment in the given sentence that contains a grammatical error. The sentence is: "We were busy at the work and went for lunch only at 2.30 pm."

Let's examine the segments based on the options provided:

• only at 2.30 pm
• at the work
• and went for lunch
• We were busy

Analyzing "at the work"

The phrase "at the work" is the segment that contains the grammatical error. When referring to the location or state of being engaged in one's job or place of employment, the idiomatic phrase used is typically "at work," without the definite article 'the'.

Using "the work" implies referring to a specific task or project, but in the context of being "busy at," the correct idiom for the general state of being occupied with one's job is "at work".

Consider these examples:

• Incorrect: She is still at the work.
• Correct: She is still at work.
• Incorrect: They are busy at the work on the project.
• Correct: They are busy at work on the project. (or) They are busy with the work on the project.

In the given sentence, "We were busy at the work," the speaker is referring to being occupied with their job or tasks in general. Therefore, the correct phrasing should be "at work".

Correcting the Sentence

Replacing the incorrect segment, the corrected sentence would be:

We were busy at work and went for lunch only at 2.30 pm.

The other segments appear grammatically correct in this context:

• We were busy: This is a standard past tense construction.
• and went for lunch: This correctly connects the two clauses, indicating a subsequent action. "Went for lunch" is a common phrase.
• only at 2.30 pm: This specifies the time using the correct preposition "at".

Detailed Analysis of the Grammatical Error Segment

The error lies specifically in the use of the definite article 'the' before 'work' in the phrase "at the work". In many common English idioms referring to places or states of being associated with daily life (like school, home, church, hospital, work), articles are often omitted when referring to the general purpose or state, rather than a specific building or instance.

For example:

• go to school (not the school, usually)
• at home (not the home)
• at church (not the church)
• in hospital (in British English; not the hospital, usually)
• at work (not the work)

This rule applies here. "Busy at work" means busy at one's place of employment or engaged in one's job duties.

Understanding Prepositions and Articles with "Work"

The word "work" can be used in different ways, sometimes as a noun (countable or uncountable) and sometimes as a verb. The articles and prepositions used depend on its function and the intended meaning.

• At work: Engaged in one's job; at the place of employment (idiomatic phrase).
• At the work: Less common, might refer to a specific piece of art or construction, but not typically used for being busy with one's job.
• Busy with the work: Refers to being occupied with a specific task or set of tasks. This is grammatically correct but differs slightly in meaning from "busy at work".

In the context "We were busy ____ and went for lunch," the phrase "busy at work" fits the meaning of being occupied with their jobs before taking a lunch break.

Revision Table: Common Article Errors

Additional Information: Idiomatic Expressions

Idiomatic expressions are phrases where the meaning isn't obvious from the individual words. "At work" is an example of such an idiom. Learning these fixed phrases is crucial for fluency and grammatical accuracy in English. Errors with articles ('a', 'an', 'the') are very common for language learners, especially with locations and abstract concepts. Paying attention to how native speakers use prepositions and articles with common nouns like 'work', 'school', 'home', etc., is very helpful in avoiding such grammatical errors.