第1个回答 2022-03-11
句子是错误的。
用这个错误的句子提问,在正确 的逻辑下,不管其他错误,
提问为:have you been to America before?
第2个回答 2022-03-11
I have been to America before.
变成疑问句:
1). Have you been America before?
2). Did you go to America before?
第3个回答 2022-03-11
Have you been to America before?
现在现在完成时态的一般疑问句,直接把自动词have提到句子开头。
第4个回答 2022-03-11
I have never been to England before.改为一般疑问句(Have )you(ever )been to England before? 有不会的可以再问我