tom has been to shanghai several times 否定句一般疑问句对划线部分提问 划线部分是 several times 用how ofter提问

问题描述:

tom has been to shanghai several times 否定句一般疑问句对划线部分提问 划线部分是 several times 用how ofter提问

否定句:Tom hasn't been to Shanghai several times.
一般疑问句:Has Tom been to Shanghai several times?
对划线部分提问:How often has Tom been to Shanghai?