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(   ) 21. Tom’s card is much more beautiful than ____________.
A. our                  B. her                   C. mine
(   ) 22. Eric has ________ e-dog and his name is Hobo.
A. a                    B. an                   C. the
(   ) 23. Sorry, I took your MP3 by mistake ,I’ll be _______ careful next time.
A. most                 B. more                 C. much