21. —I would like to pick up your sister for you. But I don’t know her. _____?
—A middle-aged woman with a round face, wearing a red blouse.
A. How about your sister B. What do you think of your sister
C. What is your sister like D. What does your sister do
22. My grandfather is too old to care for himself, so my aunt is looking for someone to _____ him.
A. treat B. cure C. attend D. examine