多选题 A number of writers who once greatly ______ the literary critic have recently recanted, substituting ______ for their former criticism.

【正确答案】 A、D

【答案解析】[解析] Substitute引导反义重复，第二个空格应填criticism的反义词，D选项入选，former和once都表示之前的观点，因此第一个空格应是criticism的同义词，A选项入选，正确答案为A，D选项。