21. —Tom, you get dead drunk again!
—_______? It’ s none of your business.
A. What for B. How come C. Why not D. So what
22. Would you allow your child to do such a thing if you are in ______ position of ______ parent?
A. a; a B. a; the C. the; a D. the; the
23. (2011西安五大名校高三第一次联考)People working 10 or 11 hours a day are more likely to suffer from health problems than _____who go off duty after eight hours.
A. those B. that C. these D. them