The teacher told the children that the Chinese culture _____ one of the oldest cultures in the world.
A. is
B. was
C. had been
D. has been
A. is
B. was
C. had been
D. has been
【答案】
A. is
B. was
C. had been
D. has been
A. is
B. was
C. had been
D. has been
【答案】
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