英语助动词和情态动词87Look,Sue is over there. That_______be her,S

英语助动词和情态动词87
Look,Sue is over there. That_______be her,She is in Canada now,空白处能用mustn't表示肯定不是她 她在加拿大现在. 答案是can't 详细说明原因
Mr Smith musr have been to your home this morning.No,he_______because he didn't know my address. 答案是couldn't 能用 may not 这个也是不可能的意思
尤柔 1年前 已收到1个回答 举报

yaner9899 幼苗

共回答了19个问题采纳率:89.5% 举报

很高兴为您
Look,Sue is over there.That_______be her,She is in Canada now,
That can't be her 不可能是她 表示强烈的否定推测
mustn't 禁止、不可以 这里不符合句义
Mr Smith musr have been to your home this morning.No,he_______because he didn't know my address.
couldn't 不可能 表示强烈的否定推测
may not 也许不 同样代入句子就可以知道不符合句意.
由后面原因“他不知道地址”,可知,是”不可能来我家“
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1年前 追问

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尤柔 举报

谢谢你了 这两道题就是通过句意 来判断的嘛? 能用语法解释吗?

举报 yaner9899

语法解释已经给出了,就是情态动词的用法和意义。
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