（ ）21.—Who’s ________woman under the tree?
—She’s my aunt, ________ actress.
A. a, the B. a, an C. the, the D. the, an
（ ）22. —Lily, you are so special that you seem so different from others.
—Everyone in the world is special. So, just ____________.
A. enjoy yourself B. be yourself
C. help yourself D. look after yourself
