people have visited the stone bridge. A. Two millions of; 500-foot–long B. Several millions of; 500-feet-long C. Two million; 500-feet- long D. Millions of; 500-foot-long 【查看更多】

 

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_____ people have visited the _____ stone bridge. 
A. Two millions of; 500-foot–long       B. Several millions of; 500-feet-long
C. Two million; 500-feet- long           D. Millions of; 500-foot-long 

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