It is reported that the new robot ________ by a middle school student three years ago.

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1. It is reported that the new robot ________ by a middle school student three years ago.

A . invented B . invents C . was invented D . is invented

使用过本题的试卷

牛津版（深圳·广州）初中英语八年级下册Unit 4 Cartoons and comic strips语法：被动语态