-----Where is Mr.wang Has he been in the library?-----He____ there.He was here just now.A can't be B isn't C mustn'be D wouldn't 只能选A吗 为什么?

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-----Where is Mr.wang Has he been in the library?-----He____ there.He was here just now.A can't be B isn't C mustn'be D wouldn't 只能选A吗 为什么?
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-----Where is Mr.wang Has he been in the library?-----He____ there.He was here just now.A can't be B isn't C mustn'be D wouldn't 只能选A吗 为什么?
-----Where is Mr.wang Has he been in the library?-----He____ there.He was here just now.
A can't be B isn't C mustn'be D wouldn't 只能选A吗 为什么?

-----Where is Mr.wang Has he been in the library?-----He____ there.He was here just now.A can't be B isn't C mustn'be D wouldn't 只能选A吗 为什么?
是的,首先D选项在语法上就错了.c选项意思不对,c选项的意思是禁止.B选项时态不对,因为后面那一句用得是was.

A 根据句意 要表达的是 特不可能在那,因为他刚还在这。 表达否定推测的 较强语气 就用can't

答案:A
解释:这里作否定的推测,用can't,表示:肯定不是,一定不。
句意:王先生在哪里?他在图书馆吗?--他【肯定不在】那里。他刚刚在这里了。
祝你学习进步,更上一层楼!(*^__^*)
有不会的可以再问我:)

是的 只能选A 因为这个回答是很明确的 就是不可能