Question

I was just dropping........ when the phone rang. (fill inthe blank with suitable preposition)

Answer 1

Answer:

I was just dropping by when the phone rang.

Answer 2

I was just dropping by when the phone rang.

Explanation:

• A preposition is a word that connect prnouns, nouns, or phrases to other words within the sentence. They act to link objects, people, locations and time of the sentence. Prepositions are generally  short words, and they are usually placed directly before nouns.

• The word “by” is very common in English. It can be used in lots of different situations and contexts. It is mostly used as a preposition

1. by+place: beside, next to, at the side of, close to, for example, The temple is by the lake
2. by+method of transport: by train/car/plain/taxi/bus etc, for example; My parents often go to France by boat.
3. by+method of communication: how we communicate with someone, for example: Ann would send Mary the invoice by post.
4. by+ payment method: how you pay for something, for example by card, by cash, for example, we paid for the dress by debit card
5. by+the passive: In the passive voice, by denotes  WHO is performing the action. For example: The kitchen is being cleaned by Seema.
6. by+reflexive pronoun: by+myself/yourself/herself/itself/yourselves/themselves, for example: I enjoy reading by myself.
7. by+-ing verb: how to do something. for example: You can turn on the Music System by pressing the blue button
8. by+time expression: not later than; before or at a particular time, for example, Please send us the package by tomorrow.

To know more

use of preposition( by) in grammar - Brainly.in

https://brainly.in/question/296011