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More than a month ____ since the foreign friends came here.为什么选a,不选b,区别在哪 A. has passed B. have passed C. has past D. have past

题目详情
More than a month ____ since the foreign friends came here.为什么选a,不选b,区别在哪 A. has passed B. have passed C. has past D. have past
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答案和解析
这是一个小语法,因为是a month ,所以是单数