用can、may、must造句,并变否,变疑,肯、否回答

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用can、may、must造句,并变否,变疑,肯、否回答用can、may、must造句,并变否,变疑,肯、否回答用can、may、must造句,并变否,变疑,肯、否回答canyouhelpme?yes

用can、may、must造句,并变否,变疑,肯、否回答
用can、may、must造句,并变否,变疑,肯、否回答

用can、may、must造句,并变否,变疑,肯、否回答
can you help me?yes, i can/no,i can't.
They can give me some suggestions. They cannot give me any suggestions.
May i come in?yes, you may./no, you may not
Must I stay at home? yes, you must/no, you needn't.