单选题 The relationship between parents and their children___________ a strong influence on the character of the children.
【正确答案】 D
【答案解析】考察谓语动词。句意：亲子关系对孩子的性格有很大影响。主语“The relationship”为不可数名词，且句子是对事实一般性叙述，所以谓语动词应用一般现在时的单数形式。故选C。