they have gone to abroad 有to 么?

they have gone to abroad 有to 么? Have you ever (been abroad)?为什么不用gone abroad或been to abroad? “He is said to have gone abroad”翻译成中文! They have gone over to France. abroad .Besides, they have to learn to depend on themselves. He was said to have gone abroad 3 years ago.句子为什么用 to have g They have gone to Xi'an,___(have) they? have been to 和have gone to 有什么区别 They have gone to Shanghai by air.改为同义句 They have gone to ()()()他们去买东西了 填空：They have gone to Hong Kong——holiday. They have gone to Beijing two years ago.(改错）