Question

Joe is very angry ________ his boss's decision to promote James.

Answer 1

Any preposition out of 'at/with/over' can be filled in the blank. So the given sentence can be written as shown below:

Joe is very angry at his boss's decision to promote James.
Joe is very angry with his boss's decision to promote James.
Joe is very angry over his boss's decision to promote James.

Answer 2

Heya Friend!!

Joe is very angry at his boss's decision to promote James.

Hope it helps : ))