单选题 He notified his friends that his address had changed.
【正确答案】 A
【答案解析】[解析] 句意为:他告知朋友们,他的地址变了。inform意为“通知、告知”;observe意为“观察、注意到”;mock意为“嘲笑、取笑”;mislead的过去式是misled,意为“误导”。