单选题 The spelling of many Old English words has been___ in the living language, although their pronunciations have changed. (2011年南京大学考博试题)
【正确答案】 A
【答案解析】解析：各选项的意思是：preserved保留，留存：preempted先占，取代；revised修订，修改；improved改善，提高。根据句意可知，答案是A。