he has been to the great wall twice.对twice提问

he has been to the great wall twice.对twice提问 I have been to the Great Wall twice(对twice进行提问） He has been to the Gread Wall twice twice 划线提问 对twice提问：sherry has been to Hong Kong twice. His father has been to America twice 对twice提问 his father has been to America twice 对twice 提问 The Greens ______ (have) been to the Great Wall twice. 改错:He said me that he had been to the Great Wall twice. 36、 “___ times has he visited the Great Wall?”“Twice.” 1)He uncle has been to Europe twice.（对画线部分提问）（画线部分是twice） He has been there twice 划线提问twice john has been to the USA twice,对划线部分提问 划the USA