9. John usually works from home, but today he _________at the office.

Question

BlackTom AI · Accepted Answer

The sentence is a sentence about a temporary action in the present. To express that John usually works from home but today he is at the office, we need a present continuous form for a temporary current action.
Option 1: 'is working' — This is the correct choice. It uses the present continuous tense (is/are + verb-ing) to describe an action happening right now or around now, which fits the context of today’s deviation from his usual routine.
Option 2: 'be working' — This is an infinitive form and does not fit the grammatical requirement of a complete verb phrase in the sentence. It would need auxiliary structure (e.g., 'is to be working') and sounds unnatural here.
Option 3: 'work' — This is the simple present tense, which is used for regular habits or general truths, not for the temporary action described as happening today. It would read awkwardly in the given sentence.
Option 4: 'working' — On its own, 'working' lacks a helping verb and would be a participle that cannot complete the clause without additional words (e.g., 'he is working'). It does not stand as the full predicate here.
Option 5: 'do work' — This is the base form with 'do' used for emphasis or questions/negatives in simple present, not appropriate for stating a temporary current action in this sentence.
In summary, the present continuous 'is working' correctly conveys that John is at the office today, contrasting with his usual pattern of working from home, whereas the other options fail to provide the proper tense, aspect, or grammatical completeness for this context.

Writing & Language Seminar I - Martinez - Preparatory Academy - 1st Semester - 2025/2026 TestFOG1- Requires Respondus LockDown Browser

9. John usually works from home, but today he _________at the office.

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