麻煩曹老師解說一下:

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

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

為何選項 B 不可以選呢？

tell sb to do sth或者not to do sth.

tell需要后接不定式作賓補。

當不定式表示的動作在前面已經(jīng)提及，則一般只保留不定式符號 to而省略實意動詞與動詞的賓語或/和狀語。或者用替代動詞do+it/so 的不定式to do it/so 來替代.

網(wǎng)友這個句子中，以下幾個都是可以用的。

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.

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