When you talk about a person's _____, you are referring to the country, race, or social class of their parents or ancestors.
As is known to us all, _____ tiger is in _____ danger of becoming extinct.
This is _____ best kind of _____ pen you can get here.
How strange! These years my birthday always falls _____.
As _____ writer, he was _____ complete failure.
—I’ve got an “A” in the examination. —That’s a good ______. You will surely win a second.