They have been friends ___for ten years___.(对划线部分提问) _____ ____ ___ they ___ friends?
问题描述:
They have been friends ___for ten years___.(对划线部分提问) _____ ____ ___ they ___ friends?
答
They have been friends ___for ten years___.
(对划线部分提问) __How___ __long__ have___ they _been__ friends?
答
how long have they been friends?
答
How long have they been friends?
就对了