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
题目
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
答案
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?
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