懂英语的可以来看下When did the building of the Great wall begin?这句该怎么

懂英语的可以来看下When did the building of the Great wall begin?这句该怎么 when did they visit the great wall? when ___(did are)you visit the great wall? THE GREAT WALL OF CHINA怎么唱? the great wall of china英语作文 英语翻译（二）The building of the Great Wall first began during the 英语连词组句like,photo,the,the Great Wall,I'd,of ______________. Did you go to the Great Wall?的意思 we saw a lot of (foreign)when we visited the Great Wall.这里的f we of the Great Wall can all walk a beautiful is building it When did the 2010 Winter Olympics begin的中文 the great wall英语作文