He found it difficult to make himself ______.

He found it difficult to make himself ______.
A、understood
B、be understood
C、understand
D、to understand
【正确答案】：A
【题目解析】：make sb done: 使某人被...。本题中的make himself understood意思是“使他自己被理解”。句中的it是形式宾语，make himself understood是真正的宾语。句意：他发现让别人理解自己很困难。