It's really a wonder that all the passengers on board____while the plane itself sank into the river
A.must have been saved B.should have been saved
选哪一个?
人气：236 ℃ 时间：2020-01-28 21:50:17
解答
个人认为是B 后面that引导的主语从句应该使用虚拟语气 表示一种惊讶的感情
因为前面说了It's really a wonder
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