The boy is often too busy writing to his father.中为什么用writing呢为何不是too.to.句式的用法?是busy的用法吗为什么不用to write

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The boy is often too busy writing to his father.中为什么用writing呢为何不是too.to.句式的用法?是busy的用法吗为什么不用to write

The boy is often too busy writing to his father.中为什么用writing呢为何不是too.to.句式的用法?是busy的用法吗为什么不用to write
The boy is often too busy writing to his father.中为什么用writing呢
为何不是too.to.句式的用法?是busy的用法吗
为什么不用to write

The boy is often too busy writing to his father.中为什么用writing呢为何不是too.to.句式的用法?是busy的用法吗为什么不用to write
be busy doing
后面的to是write to his father
如果是too...to 的用法,too 后面应该只接形容词,如上面这句:The boy is often too busy to write to his father.
有什么不懂的可以问我哦

too to用于太而不能
比如The box is too heavy to carry.
to后面一般加动词。
这里用doing因为前面有is
be busy doing sth忙于做某事
祝你快乐:)

这个总的来说是too...to用法,但是现在这个句子里面也用到了be busy doing sth句法,

too...to的意思是,太...而不能....
be busy doing srh 忙着做某事。

be busy doing srh 忙着做某事。
固定用法,要记住哦
如果用too to
就是The boy is often too busy to write to his father

be busy doing srh 忙着做某事。
是busy 用法。