Question

Choose the correct word/phrase to complete the following sentence:
I was sitting _______ my own desk when the teacher walked in.

• A. on
• B. by
• C. at
• D. in

Answer 1

The correct option is C at

A preposition is a word like 'to, from, above, below' that connects a word (generally a noun or a pronoun) to the rest of the sentence.
The given options are prepositions.
Option C: 'At' indicates a location, 'a point or place that is occupied'. It is relevant to the given sentence, as 'my own desk' is a location. Hence, option C is correct.
Option A: 'On' refers to the top of a surface, like 'on the mat'. It does not refer to a location (but a surface), hence option A is incorrect.
Option B: 'By' means 'next to' or 'near'. For example 'a bird was found injured by the roadside.' It does not relate here, as the speaker is not seated 'next to' his own desk. Hence B is incorrect.
Option D: 'In' indicates a position that is enclosed or surrounded by something else. For example, 'in the jar'. This word isn't relevant here, hence D is incorrect.