At the back of King’s College there is a memorial stone in white marble to honor the Chinese poet Xu Zhimo. Having moved to the UK in 1921, Zhimo spent a year studying at Kings where he fell in love not only with the romantic poetry of English poets like John Keats, hut also with Cambridge itself.
这个句子填这个对吗，还是填 moving？
此句需要用分词的完成体Having moved，这与有没 in 1921无关。
这句话的意思是：spent a year...是在1921年移居英国之后才达成的，这层关系需要体现出来。分词的完成式就是不同与谓语动词发生时间先后的。
假如改用从句，可以有如下选择：
After he had moved...
After he moved...
但不能说：Moving...
