Question

I put my pen ___ my pocket​

Answer 1

I put my pen in my pocket

${\underline{\boxed{ {\bf{30❤}} \ {\sf{thanks}} \implies {\underline{\underline{ { \red{\mathbb{INBOX✉}}} }}} }}}$

Answer 2

I put my pen in my pocket​.

Explanation:

Preposition

A preposition is a word used before a noun or pronoun to show its relation with the other words of the sentence.

For example,

The book is on the table.