The difficulty she had ______ her three children was solved by the local government.
问题描述：
The difficulty she had ______ her three children was solved by the local government.
A.feedB fed C to feed D feeding【我要理由】
答
此题选D
解析：这里来自一个词组have difficulty (in) doing sth的用法,in可以省略,意思是“做某事有困难”.只是这里把difficulty作为主语了,用法还是不变的.