have been to shanghai麻烦您详细点

have been to shanghai I have been to Shanghai -Have you been to Shanghai? "have been to Shanghai.,中to shanghai成分是? I have never been to shanghai.( ) ( )she I have never been to shanghai.________? --Have you ever been to Shanghai,Mary? -Have you ever been to Shanghai, Mary? I have been to shanghai 什么时态 请问一下I have been to shanghai have you very been to shanghai you have been to Shanghai , ( ) you?