单选题 The expression "not worth his salt" is still used today in English to refer to a person ______ to be incapable of doing a job.
【正确答案】 C
【答案解析】[解析] 本题测试非谓语动词的用法。felt是过去分词作后置定语,修饰名词person。a person felt to be incapable of doing a job意为“被认为不称职的人”。