1.이번 일요일에 뭐 할거니?

What are you going to do this Sunday?   ✔

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2.난 수족관에 갈거야.같이 갈래?

I'm going to the aquarium. Do you want to come with me?  ✔

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3.물론이지. 나도 정말 가고싶어.

Of course. I really want to go too.  ✔

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​• Corrected: The sentences are corrected grammatically.​