你是对的.答案是d,或者是that have ever been written --------one of the best books that have - - -- .have在这里修饰books,不修饰one.
如果答案是A ,句子必须改写为：It is the only one of the Engtlish books that HAS ever been written by a Chinese living in China.
-------注意,结构是 the only one -- - -that has(用单三形式) been written .