At the international conference, the famous scientist gave an excellent report _

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问题 At the international conference, the famous scientist gave an excellent report ______ on his recent experiment.

选项 A、basing
B、based
C、to be based
D、to base

答案 B

解析在国际会议上，这位著名的科学家做了个基于他现在的实验的精彩报告。本题考查的是分词做定语的用法。本题中所要修饰的词report和base之间是动宾关系，所以应该用过去分词做定语。

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