题目内容
句型转换
He's been skating for five hours. （就画线部分提问）
________ ________ ________ he been skating?
答案：How, long, has
练习册系列答案
相关题目
题目内容
句型转换
He's been skating for five hours. （就画线部分提问）
________ ________ ________ he been skating?