About ________ films were shown during the 5th Shanghai International Film Festival.A.two hundred ofB.two hundreds ofC.two hundredD.two hundreds
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C解析当hundred, thousand, million, billion等前面有具体数词时，其后不可以加s，也不可以加of，故A、B和D三项不符合题意；反之，如果它们前面没有具体的数词，其后必须加s，也必须加of，构成hundreds of, thousands of ,millions of, billions of短语，用来修饰复数名词。