Here are the matches of the words to their synonyms:
- employer - boss
- responsibility - duty (please note that "duty" was not listed but is a synonym for "responsibility")
- preparing - fixing (while not an exact synonym, it could be contextually relevant)
- foolish - dumb
- repair - fix
- old - ancient
- automobile - car
- difficulty - trouble
If you are looking for exact synonyms for all terms, please note that some pairs may not be direct synonyms but are contextually related.