题目内容
—What do you think is ______ stamp used today?
—Sorry, I don't know. Is it the stamp about the Great Wall?
—Sorry, I don't know. Is it the stamp about the Great Wall?
[ ]
A. commonest
B. the commonest
C. the most common
D. most common
B. the commonest
C. the most common
D. most common
C
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