It______half a year since we______to study in this university.

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问题 It______half a year since we______to study in this university.

选项 A、is; come
B、is; have come
C、has been; came
D、has been; have come

答案C

解析 现在完成时的用法。
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本试题收录于: 英语题库普高专升本分类
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