I was interested in________films when I was young．A.makeB.madeC.to makeD.making
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D解析分析：be interested in(对……有兴趣)，in是介词，后面所跟的动词要用doing形式。(延伸)be interested后面跟的是动词know时，不用be interested in的形式，而是用be interested to know的形式，表示“很想知道”，如：I'm interested to know what the weather will be like in the following days