Question at position 5 5. John usually works from home, but today he _________at the office. he be workingis workingworkingdo workwork单项选择题
A
he be working
B
is working
C
working
D
do work
E
work

Question

Question at position 5 5. John usually works from home, but today he _________at the office. he be workingis workingworkingdo workwork

BlackTom AI · Accepted Answer

Question: John usually works from home, but today he _________ at the office. options: he be working, is working, working, do work, work.

Option 1: 'he be working' — This form uses a nonstandard or incorrect subjunctive-like construction for this context. In standard English, the sentence requires a present progressive with the correct auxiliary for the subject 'he', not 'be' on its own. This makes the option incorrect.

Option 2: 'is working' — This is the standard present continuous tense: subject 'he' + auxiliary 'is' + -ing verb 'working'. It correctly expresses an action happening today at the office despite the usual pattern of working from home. This option is correct.

Option 3: 'working' — This is the -ing participle form without an auxiliary verb, which cannot stand alone to form a full clause in this context. It would need 'is' or another auxiliary, so this option is incorrect.

Option 4: 'do work' — This base form implies a simple present or a general habit, not the ongoing action today. It doesn’t fit the sentence requiring a progressive aspect, so it is incorrect.

Option 5: 'work' — The bare infinitive would not align with the tense and aspect required by the sentence. It would be ungrammatical in this context, so it is incorrect.

Summary: Among the choices, only 'is working' properly conveys the present progressive action for 'today' while the subject remains 'he', matching standard English usage and the sentence meaning. The other forms fail to match the tense, aspect, or grammatical requirements of the sentence.

Question at position 5 5. John usually works from home, but today he _________at the office. he be workingis workingworkingdo workwork单项选择题

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