The Great Wall, _____ to be the longest
问题:
The Great Wall, _____ to be the longest wall in the world, runs across China like a huge dragon.
A.saying
B.to say
C.said
D.being said
The Great Wall, _____ to be the longest wall in the world, runs across China like a huge dragon.
A.saying
B.to say
C.said
D.being said