21. Young as he is, David has gained ____ rich experience in _____ society.
A. the, the B. a, / C. /;/ D. /; the
22. ---My mother is preparing my favourite dishes. Go with me and have a taste, OK?
-----________. And I’ll be glad to meet your parents.
AI think so. B. I’d love to C. I’m sure D. I hope so
