He has been to the Gread Wall twice twice 划线提问

He has been to the Gread Wall twice twice 划线提问 he has been to the great wall twice.对twice提问 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 My brother has been to the USA __twice___ 对twice 划线部分提问 I have been to the Great Wall twice(对twice进行提问） I have been to Hong Kong 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 he has been there [twice]就划线部分提问【 】he been there she has been to beijing (twice)提问