Change in the plural.
1)A superhero has got special powers.
…………………………………
2)I have got a toy mouse.
…………………………………
3)She has got a digital camera.
…………………………………
4)This is a helmet and that is a watsh.
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1) Superheroes have got a special powers2) I have got a toy mice3) She has got a digital cameras4) This are helmets and that are watches