Question

he was too preoccupied --------his studies to think of other matters.
a)with
b)in​

Answer 1

with his studies..................

Answer 2

He was too preoccupied with his studies to think of other matters.

* The correct preposition to be used is 'with'.

* The preposition 'with' has the following usages:

1. To denote 'having' or 'possessing'-

The girl with blue eyes.....

2. To denote usage-

......wrote with the pen

3. To denote agreement-

.....agree with me

4. To denote emotions-

......with love

5. To denote involvement-

.......working with her.