Question

She will start working for our company ____ September.
Fill in the blank with the most suitable preposition.

Answer 1

Hint: A preposition is a word or set of words that come before a noun, pronoun, or noun phrase to indicate a direction, time, place, location, spatial relationships, or to introduce an object. Words like "in," "at," "on," "of," and "to" are examples of prepositions.

Complete answer:
Prepositions serve as links in sentences, linking one word to the next. They allow a speaker or writer to convey the relationship between two or more objects. Prepositions may convey information about a person's place, time, or direction, as well as provide specific information. A noun or a pronoun is normally preceded by a preposition. The following are some examples of typical prepositions: above, around, against, before, behind, and below.
Example: He sat on the chair. Here “on” is the preposition.

The preposition 'from' is used to indicate where someone/something begins or where someone/something originates. In the above sentence we have to use the most suitable preposition, therefore, the preposition ‘from’ is used because it is used to refer to the beginning of an action or event and in the sentence given in the question, the person starts her work from September.

So, the correct sentence is “She will start working for our company from September.”

Note: Since is used to present the starting point of an action that continues in the present and takes the usage of the present perfect or present perfect continuous tense verb. From is used to present the starting point of action