The parents have been watching their son____the wall of the

The parents have been watching their son____the wall of the My parents have _________ been to the Great Wall. _____ the parents _____ their daughter have been to Australi Some parents prefer ________ the wall blue for their childre Let I have been watching over you until the end of life, Both of them have been to the Great Wall.(改为否定句） Have you ever been to the Great Wall in China? It is 46of th The Greens ______ (have) been to the Great Wall twice. Have you been to the Great Wall yet?的意思 I have been to the Great Wall的作文 I have never been to the Great Wall.对不对 have you every been to the great wall?怎样回答