Use your head; nothing taught by others can have the same effect on you as _________learned by yourself.

The first snow didn’t fall until February in our province this year, ________ was unexpected.

Van Gogh succeeded in selling only one painting in his lifetime, and ______ was sold to his brother.

The factory produced a great number of computers, most of _______ shipped to foreign countries.

Only_______ stand-up comedians have become famous as television and film actors later on in life._______ person is Billy Crystal.