问题描述：
Can youcome to my birthday party this Sunday?(做肯定回答） _____._____ ______ _______.
Can you go to the shop with me?（做否定回答?
_____,______ _____.I have to help my mom.
Can you go to the shop with me?（做否定回答?
_____,______ _____.I have to help my mom.
问题解答：
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