请问下面的英语有木有错误（七下知识） Can you sing or dance? Can you play chess?

请问下面的英语有木有错误（七下知识） Can you sing or dance? Can you play chess?

正确：Can you sing or dance?
正确：Can you play chess?

错误：Then you can be in our school art festival. 改成：Then you can be in our school on the art festival.

祝你学习进步，更上一层楼！ (*^__^*)
不明白的再问哟！请记得采纳，多谢！追问我的七下英语书上第6页上写的是 Can you sing and dance?追答sing and dance当做一个并列关系的谓语动词。Can you sing and dance意思是“你会唱歌跳舞吗”。

Can you sing or dance? 你会唱歌还是会跳舞？

应该没有吧，can 没有人称和数的变化，一般现在时态后接原型。

正确：Can you sing or dance?
正确：Can you play chess?
错误：Then you can be in our school art festival. 改成：Then you can be in our school on the art festival.

正确：“Can you sing or dance?” 情态动词“can”后面加动词原形；
正确：“Can you play chess?”；
错误：“Then you can be in our school art festival.”根据句义，时间状语“art festival”前面应该有个介词“on”连接，“festival”虽然是可数名词，但若前面有“art”来修饰便可以不加冠词“the”等等；正确的应该为“Then you can be in our school on art festival.”