tell sb not to与tell sb not to do有什么区别

麻烦曹老师解说一下:

The boy wanted to ride his bicycle in the street, but his mother told him _____．

A. notto B. nottodo C. notdoit D. donotto

为何选项 B 不可以选呢？

tell sb to do sth或者not to do sth.

tell需要后接不定式作宾补。

当不定式表示的动作在前面已经提及，则一般只保留不定式符号 to而省略实意动词与动词的宾语或/和状语。或者用替代动词do+it/so 的不定式to do it/so 来替代.

网友这个句子中，以下几个都是可以用的。

but his mother told him not to.

but his mother told him not to do it.

but his mother told him not to do so.

但不可以说 but his mother told him not to do.