. —You seemed to be impressed by his skill. —Not exactly so. It was his courage ______his skill that really impressed me.
Not a single mistake _______ in the last test.
So difficult ______ it to work with him in the same company that I determined to find another job.
Only when you have finished your homework ______ go home.
It was in the street ______ I live that I met Mr. Green.
A man may usually be known by the books he reads _______ by the friends he keeps.