I will work to the best of my ability.
I sold the best jewel that I had.
I think that honesty is the best policy.
I like tennis the best of all sports.
I like English the best of all the subjects.
I will do the work to the best of my ability.
I will do my duty to the best of my ability.
I didn't want to work with him, but I made the best of it.
I regarded him as the best doctor in town.
I rate him among the best modern composers in Japan.