问题
选择题
I can't forget the persons and the things _____ I met in the Shanghai World Expo. [ ]
A. which
B. who
C. that
D. what
答案
答案：C
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I can't forget the persons and the things _____ I met in the Shanghai World Expo. [ ]
A. which
B. who
C. that
D. what
答案：C
。求：