请大神帮我把下面一句话的成分分析一下,

问题描述:

请大神帮我把下面一句话的成分分析一下,
A report consistently brought back by visitors to the US is how friendly,courteous and helpful most Americans were to them
我问的是主谓宾这些成分

美国的访问者经常带回大多数美国人对他们礼貌和乐于助人的友好报告.