Question

It is ten’ o clock ___________ my watch.
A.In
B.By
C.At
D.To

Answer 1

Hint: Prepositions are words that link a noun, pronoun or phrase to words within a sentence. They simply connect people, things, time and location in a sentence. Preposition words show the relationship between the words in a sentence, hence choose the option that joins the sentence correctly with appropriate meaning.

Complete answer:
In the sentence above, we might get confused on which is the right option. However, we will have an idea only when we know which preposition is used when. Now when we look into the correct option, the sentence gets completed like: It is ten’ o clock by my watch. The reason here is, “by” is used to indicate “close to”, “next to” or “beside”. So it becomes appropriate in the sentence above.
As we look into other options, option (A) that contains preposition “In”, will be incorrect as “in” is used in sentences that refer to time such as in months, years, decades or centuries. These uses don’t fit in the sentence
As we look into option (C) which contains preposition “At”, will be incorrect as “At” is used in sentences that refer to locations.
As we look into option (D) which contains preposition “to”, will also be incorrect as it is used in sentences that refer to something that’s moving from one place to another.

Hence the correct answer is option ‘B’.

Note: A preposition is a word or group of words used before a noun, pronoun, or noun phrase to show direction, time, place, location, spatial relationships, or to introduce an object. Some examples of prepositions are words like "in," "at," "on," "of," and "to."Prepositions in English are highly idiomatic.