21. (2017·河南中考)—When will ________ car race begin?
—I'm not sure. Maybe ________ next week, or may be after next week.
A. a; the B. an; the
C. the; a D. the; the
22. (2017·龙东中考)The number of the old people is increasing in China. With the development of Chin a, they ________ better care of in the future.
A. will take B. are taken C. will be taken
