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?

They have been friends ___for ten years___.
(对划线部分提问) __How___ __long__ have___ they _been__ friends?

how long have they been friends?

How long have they been friends?
就对了