The boy is so young that he can't dress himself 改为同义句The boy is too young to ( ) dress himself.题目就是这样的

The boy is so young that he can't dress himself 改为同义句
The boy is too young to ( ) dress himself.题目就是这样的

不要填
不懂追问*^__^*

空中什么也不填。
估计题出错了，将to给写出来了。

be able to

too.... to... 太。。。以至于不能。。。
to 后直接加动词原形