then you can in our school music festival.这句话哪错了

then you can in our school music festival.这句话哪错了 Then we can _____ in our school music festival. then you can be in our school music festival .中为什么要加be? in,then,festival,you,be,music,our,can,school.（连词成句） 句型：Then you can be in our music festival. You can be in our school music festival的be You can be in our school music festival什么意思? then you can are in our school festival.改错 Then you can be in our school music festiva. Mike can ( ) ( ) in our school music festival 连词成句:music,be,our,you,can,school,in,festival you can be in our school music festival 改为一般疑问句