Recently two pieces of wrapping paper dating from about 700 years ago ____ the earliest paper advertisements,
much older than similar ads in the West.

A. have considered
B. considered
C. were considered
D. have been considering
C
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科目：高中英語 來源：模擬題 題型：單選題

Recently two pieces of wrapping paper dating from about 700 years ago ____ the earliest paper advertisements,
much older than similar ads in the West.
[     ]
A. have considered
B. considered
C. were considered
D. have been considering

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