英语改一般疑问句？

1:we do ege exerase a verg dag

2:marg has an in teresting story -book

3:i can work out this math problom

4:they slept well last night

5:there is some ting in the house

6: he's aready ginuushed his home work

麻烦各位英语高手解决下，小弟照着本子打的，有错误的地方，请大家帮我改下谢谢！

2:marg has an in teresting story -book ,doesn't he?

3:i can work out this math problom ,cann't I?

4:they slept well last night ,didn't they?

5:there is some ting in the house ,isn't there?

6: he's aready finished his home work ,hasn't he?

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