两道句型转换题（英语）
问题描述：
两道句型转换题（英语）
The twins are twelve.Kate is eleven.(改为同义句）
Kate_______ the _______ of _______.
What does he often do that for?(改为同义句）
_______ ________he often do that?
答
kate is the oldest of them
Why does What ...for=why