The fish are easy ________.A.to look after themB.for looking afterC.to look afterD.for looking after them
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C解析在英语中,不定式常可用于一些形容词后作其宾语,这类形容词有easy, hard, difficult, funny, nice, simple, useful等,且句子的主语通常是不定式的逻辑宾语,如:The work is difficult to do.(这项工作很难做。)如果这种结构中的不定式中的动词是不及物动词,则必须加上结构或含义所需的介词。如:The river is dangerous to swim in.(在这条河里游泳很危险。)