----You haven’t done it well.----But I tried my best and did it ______ the way ______ I thought was the best.
Professor Liu has ________ teach psychology since he came to the Central China Normal University.
He proved himself a true gentleman and the beauty of his _______ was seen at its best when he worked with others.
----Any news about Bill Clinton? ----He left power three years ago and has a little now and a little then been ______.
I am afraid I am not fit for the job, for it is _____calling for much patient.
If you want to sell your product you must _____ it.