题目内容：

we didn't see him at the lecture yesterday,he___itA,can't have attended B.needed have attended

优质解答

选A can't have attended
翻译：我们在昨天的演讲会上没看到他,他不可能有到场.
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追问：

可答案是B?

追答：

你看错了 要么答案出错了 100%