题目内容
【题目】Diaoyu Islands ____ part of China since ancient times.
A. have been B. were C. are D. has been
【答案】A
【解析】句意：钓鱼岛自从古代就是中国的一部分。根据since ancient times.可知用现在完成时态，结构是：have/has+过去分词，主语Islands是复数，，所以用have；故选A
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【题目】Diaoyu Islands ____ part of China since ancient times.
A. have been B. were C. are D. has been
【答案】A
【解析】句意：钓鱼岛自从古代就是中国的一部分。根据since ancient times.可知用现在完成时态，结构是：have/has+过去分词，主语Islands是复数，，所以用have；故选A