John has never been to a science museum with his father.对划线部

John has never been to a science museum with his father.对划线部 John has never been to the space museum,____?A.has John B.ha 现在完成时练习：He has never ____(go) to the science museum.答案是been, He has never gone to the science museum 为什么用gone?不是用been? John has never been to the space museum改否定句和疑问句 John has never been to the space museum.怎摸翻译? His father has been to America twice 对twice提问 his father has been to America twice 对twice 提问 My father sometimes has dinner with his friend.对划线部分提问(划线部分为 1.Have you ever been to a science museum? his father has been to America twice to our great joy,his father has been cured with his lung can