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

–Do you think they have as many books as they’ve described? --Well, in my opinion, they have few books, if ______.

The sunspot came into its active stage, ____ that happens once every eleven years.

I think Mrs. Stark could be _______ between 50 and 60 years of age.

Good families are much to all their members, but ________ to none.