We bought some my cousin as .
A. stationary for, souvenirs
B. stationery for ,souvenirs
C. stationaries for, as
D. stationeries for , souvenir
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A. stationary for, souvenirs
(答案→)B. stationery for ,souvenirs
C. stationaries for, as
D. stationeries for , souvenir
解析：此题重点考查名词的单复数形式。