Question

i will work ___five o'clock (prepositions)

Answer 1

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i will work at five o'clock.

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Answer 2

Hello There!

The best word which fits the underline, is at five o'clock. We use at since it is a preposition which describes the time when an event will incur. Therefore, that is how at would be the correct word used for this question.

Thanks for asking this question!