Karim was angry ____ his conduct.

• শূন্যস্থানে সঠিক উত্তর হবে at.
Complete sentence: Karim was angry at his conduct.

• Angry at (one's conduct)-
Meaning: (আচরণ বা কর্মের উপর) রাগান্বিত৷
যেমন-
He was very angry at my conduct.
I was angry at the result.

আবার,
• Angry with (a person)-
Meaning: (কারো সঙ্গে) রাগান্বিত৷
যেমন-
He is angry with me.
The headmaster was angry with the students.