A. What pet do you want to have?

 I want to have a (name of an animal). 

=> Corrected : The sentence is corrected grammatically. 

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B. No I can't.✔

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Look at me! I can play drum? What can  Doldol do is he can play?

=> Corrected : The sentence is corrected grammatically. 

​(Capitalization) 

​(Punctuation)

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I...✔

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