Correct Answer:
Option A - In the blank space of the above sentence 'on' (preposition) would be appropriate because 'get on with' is a phrasal verb that means 'to have a friendly relationship with somebody.'
Correct Sentence-
How are you getting on with your boss?
A. In the blank space of the above sentence 'on' (preposition) would be appropriate because 'get on with' is a phrasal verb that means 'to have a friendly relationship with somebody.'
Correct Sentence-
How are you getting on with your boss?