mustn't 和can't的区别 填空Is Kate knocking at the door?No,it ( ) be Kate .She is in Shanghai now.A.can't B.must't C.shouldn't D.needn't （答案上选A,但我觉得是B,请说明原因!）

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mustn''t和can''t的区别填空IsKateknockingatthedoor?No,it()beKate.SheisinShanghainow.A.can''tB.must''tC.shouldn''

mustn't 和can't的区别 填空Is Kate knocking at the door?No,it ( ) be Kate .She is in Shanghai now.A.can't B.must't C.shouldn't D.needn't （答案上选A,但我觉得是B,请说明原因!）
mustn't 和can't的区别 填空
Is Kate knocking at the door?No,it ( ) be Kate .She is in Shanghai now.A.can't B.must't C.shouldn't D.needn't （答案上选A,但我觉得是B,请说明原因!）

mustn't 和can't的区别 填空Is Kate knocking at the door?No,it ( ) be Kate .She is in Shanghai now.A.can't B.must't C.shouldn't D.needn't （答案上选A,但我觉得是B,请说明原因!）
就是选A
情态动词用于表示推测并含有否定意义只能用can't.(mustn't不能用于表示推测)

can't
mustn't :不准，不允许，
can't ,不能，不可能。

must 在表推测时只用与肯定。同时can't在表推测时只用于否定、

是不是物做主语或者是it做主语的时候不能用must???

can't是可能性的推测，表示“不可能。。”
must分两种否定形式1，needn't表示不必要。。
2，mustn't表示不许。。

Can't是“不可能”的意思，含有猜测；而Mustn't的解释是“禁止”，语气也比较的不客气了~~

1. mustn't在英语中不能用于表示推测，但是可以表示“禁止/不允许”之意。
如：You mustn't smoke here. 在这里你不许抽烟。
2. can't/couldn't表示推测时，意思是“不可能...”，语气非常坚决的否定推测。
根据动作发生的时间，一般分为以下三种情况：
1）进行式（对正在发生的事情的否定推测）：can't be doing s...

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1. mustn't在英语中不能用于表示推测，但是可以表示“禁止/不允许”之意。
如：You mustn't smoke here. 在这里你不许抽烟。
2. can't/couldn't表示推测时，意思是“不可能...”，语气非常坚决的否定推测。
根据动作发生的时间，一般分为以下三种情况：
1）进行式（对正在发生的事情的否定推测）：can't be doing sth
如：It's already ten o'clock. My father can't be sleeping now.
2）完成式（对过去的动作的否定推测）：can't/couldn't have done sth
如：He is at schoool, so he can't/couldn't have stayed up last night.
3）一般式（对现在/将来情况的否定推测）：can't do sth
如：Your answer can't be true.
3. can/could表示推测时一般只用于否定句/疑问句，但是也可用于肯定句，只是比较少见。
其中could不表示过去式，而表示可能性较小。
如：I think the work can be completed ahead of time. 我认为这项工作能提前完成。

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表示推断猜测，而B是肯定的说法

答案是选can't
mustn't 意思是“不准，禁止”，
can't 意思是“不可能”
题目问的是：
--是kate在敲门吗？
--不，不可能是她。她人现在在上海。

情态动词的can't和mustn't的区别 can`t与mustn`t意义和用法的区别 看一下这道题:mustn't和can't的区别? mustn't/can't/won't/shan't的用法和区别,请详细一点. have to,has to,can和mustn't的区别 oughtn't, mustn't, can't区别 can't和mustn't有什么区别请详解 can't和mustn't有什么区别? 情态动词mustn't和can't有什么区别? mustn't have done和can't have done的区别最好有例子 may的否定回答mustn't和can't有什么区别 may not/can't/couldn't/needn't/mustn't举例区别意思和用法 can‘t be 和mustn’t be的用法 mayn't be ,can't be,mustn't be,shouldn't be的区别 can can't must mustn't have to don't have to的区别 8、________I sleep here?NO,you_______ A May neednt B May mustnt C Must ,may not D Must ,cant 再请说明 各选项的区别 和 needt 和mustnt的区别 needn't和 mustn't和shouldn't和ought't的区别? needn't 与mustn't的区别?