单选题 It was just a ______ that could be easily cleared up.

【正确答案】 D
【答案解析】本题考查动词与名词之间的转换。understand是动词,understanding是动名词,意为“理解”;misunderstand是动词,misunderstanding是动名词,意为“误解”。该句意为:这个误解应该很容易被澄清。