问题描述：
请问这题为什么不能选A?
10.the secretary worked late into the night ,___a long speech for the president.
A to prepare B preparing C prepared D was preparing
选B
不定式和粉刺都可以表示状语吧?to do 可以做目的状语吧?整夜忙碌工作,目的是为了…… 为什么不能用to do呢?
10.the secretary worked late into the night ,___a long speech for the president.
A to prepare B preparing C prepared D was preparing
选B
不定式和粉刺都可以表示状语吧?to do 可以做目的状语吧?整夜忙碌工作,目的是为了…… 为什么不能用to do呢?
问题解答：
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