Choose the most suitable option to replace the highlighted part of the sentence:
She goes to office in bus every day.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. by bus.
Error Concept: Incorrect use of prepositions for modes of transportation.
What is wrong: The sentence uses 'in bus.' In English, when we talk about the general method or medium of travel, we use the preposition 'by' followed directly by the noun (without an article like 'a' or 'the').
Grammatical Rules:
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By + Mode of Transport: Used to describe the method of travel in a general sense.
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Examples: By bus, by car, by train, by plane, by boat.
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In + Specific Vehicle: Used when referring to a specific, enclosed vehicle, usually requiring an article or possessive pronoun.
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Examples: In the bus, in my car, in a taxi.
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On + Specific Large Vehicle/Open Transport: Used for larger public transport or things you sit 'on top' of.
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Examples: On the bus, on the train, on a bicycle, on foot.
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Why 'by bus' is the best fit: Since the sentence describes a daily routine and a general method of commuting, the idiomatic expression is 'by bus.'
Hence, the chosen option is correct.