问题描述：
may与shall的区别
-I hear you have got a set of valuable Australian coins.___I have a look?
-Yes,certainly.
为什么要用may不用shall?同样都可以用来请求允许啊.
-I hear you have got a set of valuable Australian coins.___I have a look?
-Yes,certainly.
为什么要用may不用shall?同样都可以用来请求允许啊.
问题解答：
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