We can't understand why he avoided ___________ to us.

We can't understand why he avoided ___________ to us.
A、to speak
B、Speak
C、having spoke
D、speaking
【正确答案】：D
【题目解析】：动词avoid的意思是“避免”，其后要接动名词，常常是动名词的式。因此答案是D项。句意为:“我们不明白他为什么不和我们交谈。”