B. get on
Feedback get through - 1. to do a certain amount of work 2. spend money 3. to survive a difficult period. 4. to reach somebody by telephone 5. to promote something.
get on - 1. to be friendly with somebody 2. to manage 3. to wear some clothes. 4. to continue.
hit on - 1. to come across an idea/ discover something 2. to flirt.
knock into - to make somebody understand something