问题描述：
it was two years ago when i first saw the great wall
it was two years ago when I first saw the Great wall
=I saw the Graet Wall______the_______ ________ two years ago
填空．
it was two years ago when I first saw the Great wall
=I saw the Graet Wall______the_______ ________ two years ago
填空．
问题解答：
我来补答展开全文阅读