选择适当的情态动词填空 can,may,must,shall,would,should,can't,mustn't,needn't,have to____you please give me some water?

问题描述:

选择适当的情态动词填空 can,may,must,shall,would,should,can't,mustn't,needn't,have to
____you please give me some water?

could you please give me some water?