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My brother often ____(surfed;surfing)the Internet when he was in university.选择正确一项

分类: 作业答案 • 2021-12-16 22:01:43

问题描述：

My brother often ____(surfed;surfing)the Internet when he was in university.选择正确一项

答

答案是：surfed
因为
surfing 不能作谓语
加油!不明白再问!