The manager is angry _________________ the assistant for not attending to the work.
The manager is angry _________________ the assistant for not attending to the work.
Explanation
Angry with someone means کسی سے ناراض ہونا
Angry with: کسی انسان سے ناراض ہونا
Angry on: کسی بات پہ ناراض ہونا
Angry at برتاو یا رویے پر ناراض ہونا